{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59991", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-07T19:41:00.005Z", "datePublished": "2026-09-22T19:11:38.661Z", "dateUpdated": "2026-09-22T19:37:39.755Z"}, "containers": {"cna": {"title": "psd-tools: Uncontrolled memory allocation in psd-tools composite/numpy via crafted PSD geometry", "problemTypes": [{"descriptions": [{"cweId": "CWE-789", "lang": "en", "description": "CWE-789: Memory Allocation with Excessive Size Value", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-8q6g-vjhf-jp8m", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-8q6g-vjhf-jp8m"}, {"name": "https://github.com/psd-tools/psd-tools/commit/a3d9a53ad51e667b5772a4f636ca6f2e16f4b271", "tags": ["x_refsource_MISC"], "url": "https://github.com/psd-tools/psd-tools/commit/a3d9a53ad51e667b5772a4f636ca6f2e16f4b271"}, {"name": "https://github.com/psd-tools/psd-tools/releases/tag/v1.17.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/psd-tools/psd-tools/releases/tag/v1.17.4"}], "affected": [{"vendor": "psd-tools", "product": "psd-tools", "versions": [{"version": "< 1.17.4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-22T19:11:38.661Z"}, "descriptions": [{"lang": "en", "value": "psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to 1.17.4, PSDImage.composite() and PSDImage.numpy() allocated output buffers from attacker-controlled PSD header geometry, including width, height, channels, depth, and per-layer rectangles, before validating those values against the available file data. A tiny crafted PSD could therefore cause multi-gigabyte memory allocation, and PSDImage.composite() could return a black image with only a warning instead of raising an exception. Services that composite untrusted PSD files could be terminated by out-of-memory handling. This issue is fixed in version 1.17.4."}], "source": {"advisory": "GHSA-8q6g-vjhf-jp8m", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-8q6g-vjhf-jp8m", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-22T19:36:58.263987Z", "id": "CVE-2026-59991", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"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": "2026-09-22T19:37:39.755Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-59991", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-22T19:36:58.263987Z"}}}], "references": [{"url": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-8q6g-vjhf-jp8m", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-22T19:37:34.572Z"}}], "cna": {"title": "psd-tools: Uncontrolled memory allocation in psd-tools composite/numpy via crafted PSD geometry", "source": {"advisory": "GHSA-8q6g-vjhf-jp8m", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "psd-tools", "product": "psd-tools", "versions": [{"status": "affected", "version": "< 1.17.4"}]}], "references": [{"url": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-8q6g-vjhf-jp8m", "name": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-8q6g-vjhf-jp8m", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/psd-tools/psd-tools/commit/a3d9a53ad51e667b5772a4f636ca6f2e16f4b271", "name": "https://github.com/psd-tools/psd-tools/commit/a3d9a53ad51e667b5772a4f636ca6f2e16f4b271", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/psd-tools/psd-tools/releases/tag/v1.17.4", "name": "https://github.com/psd-tools/psd-tools/releases/tag/v1.17.4", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to 1.17.4, PSDImage.composite() and PSDImage.numpy() allocated output buffers from attacker-controlled PSD header geometry, including width, height, channels, depth, and per-layer rectangles, before validating those values against the available file data. A tiny crafted PSD could therefore cause multi-gigabyte memory allocation, and PSDImage.composite() could return a black image with only a warning instead of raising an exception. Services that composite untrusted PSD files could be terminated by out-of-memory handling. This issue is fixed in version 1.17.4."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-789", "description": "CWE-789: Memory Allocation with Excessive Size Value"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-22T19:11:38.661Z"}}}, "cveMetadata": {"cveId": "CVE-2026-59991", "state": "PUBLISHED", "dateUpdated": "2026-09-22T19:37:39.755Z", "dateReserved": "2026-07-07T19:41:00.005Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-09-22T19:11:38.661Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "psd-tools", "vendor": "psd-tools", "versions": [{"status": "affected", "version": "< 1.17.4"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to 1.17.4, PSDImage.composite() and PSDImage.numpy() allocated output buffers from attacker-controlled PSD header geometry, including width, height, channels, depth, and per-layer rectangles, before validating those values against the available file data. A tiny crafted PSD could therefore cause multi-gigabyte memory allocation, and PSDImage.composite() could return a black image with only a warning instead of raising an exception. Services that composite untrusted PSD files could be terminated by out-of-memory handling. This issue is fixed in version 1.17.4."}], "id": "CVE-2026-59991", "lastModified": "2026-09-22T20:17:04.123", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59991", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-22T19:36:58.263987Z", "version": "2.0.3"}}]}, "published": "2026-09-22T20:17:04.123", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/psd-tools/psd-tools/commit/a3d9a53ad51e667b5772a4f636ca6f2e16f4b271"}, {"source": "security-advisories@github.com", "url": "https://github.com/psd-tools/psd-tools/releases/tag/v1.17.4"}, {"source": "security-advisories@github.com", "url": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-8q6g-vjhf-jp8m"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-8q6g-vjhf-jp8m"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-789"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.17.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "psd-tools", "source": "cna", "vendor": "psd-tools"}, "product": "psd-tools", "vendor": "psd-tools"}], "created": "2026-09-22T20:30:07.728406+00:00", "updated": "2026-09-22T20:30:07.728433+00:00", "vendors": ["psd-tools", "psd-tools$PRODUCT$psd-tools"]}