{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-8291", "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22", "state": "PUBLISHED", "assignerShortName": "PSF", "dateReserved": "2025-07-28T21:05:06.237Z", "datePublished": "2025-10-07T18:10:05.908Z", "dateUpdated": "2025-10-29T15:15:27.172Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "CPython", "repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "versions": [{"version": "0", "lessThan": "3.9.24", "status": "affected", "versionType": "python"}, {"version": "3.10.0", "lessThan": "3.10.19", "status": "affected", "versionType": "python"}, {"version": "3.11.0", "lessThan": "3.11.14", "status": "affected", "versionType": "python"}, {"version": "3.12.0", "lessThan": "3.12.12", "status": "affected", "versionType": "python"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Caleb Brown (Google)"}, {"lang": "en", "type": "remediation developer", "value": "Serhiy Storchaka"}, {"lang": "en", "type": "coordinator", "value": "Seth Larson"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The 'zipfile' module would not check the validity of the ZIP64 End of\nCentral Directory (EOCD) Locator record offset value would not be used to\nlocate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be\nassumed to be the previous record in the ZIP archive. This could be abused\nto create ZIP archives that are handled differently by the 'zipfile' module\ncompared to other ZIP implementations.</p>\n<p>Remediation maintains this behavior, but checks that the offset specified\nin the ZIP64 EOCD Locator record matches the expected value.</p>"}], "value": "The 'zipfile' module would not check the validity of the ZIP64 End of\nCentral Directory (EOCD) Locator record offset value would not be used to\nlocate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be\nassumed to be the previous record in the ZIP archive. This could be abused\nto create ZIP archives that are handled differently by the 'zipfile' module\ncompared to other ZIP implementations.\n\n\nRemediation maintains this behavior, but checks that the offset specified\nin the ZIP64 EOCD Locator record matches the expected value."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "providerMetadata": {"orgId": "28c92f92-d60d-412d-b760-e73465c3df22", "shortName": "PSF", "dateUpdated": "2025-10-14T15:58:46.548Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/python/cpython/pull/139702"}, {"tags": ["vendor-advisory"], "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/QECOPWMTH4VPPJAXAH2BGTA4XADOP62G/"}, {"tags": ["issue-tracking"], "url": "https://github.com/python/cpython/issues/139700"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/162997bb70e067668c039700141770687bc8f267"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/333d4a6f4967d3ace91492a39ededbcf3faa76a6"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/1d29afb0d6218aa8fb5e1e4a6133a4778d89bb46"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/76437ac248ad8ca44e9bf697b02b1e2241df2196"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/8392b2f0d35678407d9ce7d95655a5b77de161b4"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/bca11ae7d575d87ed93f5dd6a313be6246e3e388"}, {"tags": ["patch"], "url": "https://github.com/python/cpython/commit/d11e69d6203080e3ec450446bfed0516727b85c3"}], "source": {"discovery": "UNKNOWN"}, "title": "ZIP64 End of Central Directory (EOCD) Locator record offset not checked", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-1285", "lang": "en", "description": "CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input"}]}], "references": [{"url": "https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2025-12.json", "tags": ["vendor-advisory"]}, {"url": "https://github.com/google/security-research/security/advisories/GHSA-hhv7-p4pg-wm6p", "tags": ["technical-description", "exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-10-29T15:15:06.403842Z", "id": "CVE-2025-8291", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-29T15:15:27.172Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-8291", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-29T15:15:06.403842Z"}}}], "references": [{"url": "https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2025-12.json", "tags": ["vendor-advisory"]}, {"url": "https://github.com/google/security-research/security/advisories/GHSA-hhv7-p4pg-wm6p", "tags": ["technical-description", "exploit"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1285", "description": "CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-08T18:41:10.269Z"}}], "cna": {"title": "ZIP64 End of Central Directory (EOCD) Locator record offset not checked", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "reporter", "value": "Caleb Brown (Google)"}, {"lang": "en", "type": "remediation developer", "value": "Serhiy Storchaka"}, {"lang": "en", "type": "coordinator", "value": "Seth Larson"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/python/cpython", "vendor": "Python Software Foundation", "product": "CPython", "versions": [{"status": "affected", "version": "0", "lessThan": "3.9.24", "versionType": "python"}, {"status": "affected", "version": "3.10.0", "lessThan": "3.10.19", "versionType": "python"}, {"status": "affected", "version": "3.11.0", "lessThan": "3.11.14", "versionType": "python"}, {"status": "affected", "version": "3.12.0", "lessThan": "3.12.12", "versionType": "python"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://github.com/python/cpython/pull/139702", "tags": ["patch"]}, {"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/QECOPWMTH4VPPJAXAH2BGTA4XADOP62G/", "tags": ["vendor-advisory"]}, {"url": "https://github.com/python/cpython/issues/139700", "tags": ["issue-tracking"]}, {"url": "https://github.com/python/cpython/commit/162997bb70e067668c039700141770687bc8f267", "tags": ["patch"]}, {"url": "https://github.com/python/cpython/commit/333d4a6f4967d3ace91492a39ededbcf3faa76a6", "tags": ["patch"]}, {"url": "https://github.com/python/cpython/commit/1d29afb0d6218aa8fb5e1e4a6133a4778d89bb46", "tags": ["patch"]}, {"url": "https://github.com/python/cpython/commit/76437ac248ad8ca44e9bf697b02b1e2241df2196", "tags": ["patch"]}, {"url": "https://github.com/python/cpython/commit/8392b2f0d35678407d9ce7d95655a5b77de161b4", "tags": ["patch"]}, {"url": "https://github.com/python/cpython/commit/bca11ae7d575d87ed93f5dd6a313be6246e3e388", "tags": ["patch"]}, {"url": "https://github.com/python/cpython/commit/d11e69d6203080e3ec450446bfed0516727b85c3", "tags": ["patch"]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "The 'zipfile' module would not check the validity of the ZIP64 End of\nCentral Directory (EOCD) Locator record offset value would not be used to\nlocate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be\nassumed to be the previous record in the ZIP archive. This could be abused\nto create ZIP archives that are handled differently by the 'zipfile' module\ncompared to other ZIP implementations.\n\n\nRemediation maintains this behavior, but checks that the offset specified\nin the ZIP64 EOCD Locator record matches the expected value.", "supportingMedia": [{"type": "text/html", "value": "<p>The 'zipfile' module would not check the validity of the ZIP64 End of\nCentral Directory (EOCD) Locator record offset value would not be used to\nlocate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be\nassumed to be the previous record in the ZIP archive. This could be abused\nto create ZIP archives that are handled differently by the 'zipfile' module\ncompared to other ZIP implementations.</p>\n<p>Remediation maintains this behavior, but checks that the offset specified\nin the ZIP64 EOCD Locator record matches the expected value.</p>", "base64": false}]}], "providerMetadata": {"orgId": "28c92f92-d60d-412d-b760-e73465c3df22", "shortName": "PSF", "dateUpdated": "2025-10-14T15:58:46.548Z"}}}, "cveMetadata": {"cveId": "CVE-2025-8291", "state": "PUBLISHED", "dateUpdated": "2025-10-29T15:15:27.172Z", "dateReserved": "2025-07-28T21:05:06.237Z", "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22", "datePublished": "2025-10-07T18:10:05.908Z", "assignerShortName": "PSF"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The 'zipfile' module would not check the validity of the ZIP64 End of\nCentral Directory (EOCD) Locator record offset value would not be used to\nlocate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be\nassumed to be the previous record in the ZIP archive. This could be abused\nto create ZIP archives that are handled differently by the 'zipfile' module\ncompared to other ZIP implementations.\n\n\nRemediation maintains this behavior, but checks that the offset specified\nin the ZIP64 EOCD Locator record matches the expected value."}], "id": "CVE-2025-8291", "lastModified": "2025-10-29T16:15:35.133", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "cna@python.org", "type": "Secondary"}]}, "published": "2025-10-07T18:16:00.317", "references": [{"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/162997bb70e067668c039700141770687bc8f267"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/1d29afb0d6218aa8fb5e1e4a6133a4778d89bb46"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/333d4a6f4967d3ace91492a39ededbcf3faa76a6"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/76437ac248ad8ca44e9bf697b02b1e2241df2196"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/8392b2f0d35678407d9ce7d95655a5b77de161b4"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/bca11ae7d575d87ed93f5dd6a313be6246e3e388"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/commit/d11e69d6203080e3ec450446bfed0516727b85c3"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/issues/139700"}, {"source": "cna@python.org", "url": "https://github.com/python/cpython/pull/139702"}, {"source": "cna@python.org", "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/QECOPWMTH4VPPJAXAH2BGTA4XADOP62G/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/google/security-research/security/advisories/GHSA-hhv7-p4pg-wm6p"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2025-12.json"}], "sourceIdentifier": "cna@python.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1285"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "cpython: python: Python zipfile End of Central Directory (EOCD) Locator record offset not checked", "id": "2402342", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2402342"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-130", "details": ["No description is available for this CVE."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2025-8291", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "python3.12", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "python", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "python", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "python3", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "python3", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "python3.11", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "python3.12", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "python36:3.6/python36", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "python39:3.9/python39", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "python39-devel:3.9/python39", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "python3.11", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "python3.12", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "python3.9", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:1", "fix_state": "Fix deferred", "package_name": "rhelai1/bootc-amd-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI)"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:1", "fix_state": "Fix deferred", "package_name": "rhelai1/bootc-aws-nvidia-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI)"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:1", "fix_state": "Fix deferred", "package_name": "rhelai1/bootc-azure-amd-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI)"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:1", "fix_state": "Fix deferred", "package_name": "rhelai1/bootc-azure-nvidia-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI)"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:1", "fix_state": "Fix deferred", "package_name": "rhelai1/bootc-gcp-nvidia-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI)"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:1", "fix_state": "Fix deferred", "package_name": "rhelai1/bootc-nvidia-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI)"}], "public_date": "2025-10-07T18:10:05Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-8291\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-8291\nhttps://github.com/python/cpython/commit/162997bb70e067668c039700141770687bc8f267\nhttps://github.com/python/cpython/commit/333d4a6f4967d3ace91492a39ededbcf3faa76a6\nhttps://github.com/python/cpython/issues/139700\nhttps://github.com/python/cpython/pull/139702\nhttps://mail.python.org/archives/list/security-announce@python.org/thread/QECOPWMTH4VPPJAXAH2BGTA4XADOP62G/"], "threat_severity": "Moderate"}

{"created": "2025-10-08T13:35:32.269014+00:00", "updated": "2025-10-08T13:35:32.269042+00:00", "vendors": ["python", "python$PRODUCT$cpython"]}