CVE-2026-79514

GPAC Downloader Out-of-Bounds Read Leading to Denial of Service

Published Sep 9, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
An out-of-bounds read in the gf_dm_data_received function (downloader.c) of GPAC v26.07.0 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request. Fixed in 2fd5a06ab226767900fd86edb5a1e8bfc1010640.

Analysis

AI-generated

Technical impact

The vulnerability is an out‑of‑bounds read in the gf_dm_data_received function of GPAC's downloader module. When a crafted HTTP request is processed, the function accesses memory beyond the allocated buffer, causing the application to crash. This can be triggered repeatedly by an attacker to exhaust resources and render the GPAC service unavailable.

Affected Systems

GPAC version 26.07.0 is affected. No other vendor or product variants are listed in the CNA data.

Risk and Exploitability

The CVSS score of 6.5 indicates moderate severity. The EPSS score is less than 1%, showing a low likelihood of exploitation, and the vulnerability is not listed in the CISA KEV catalog. Attack vectors are inferred to be network‑based, as the flaw is triggered by sending a specially crafted HTTP request to the GPAC downloader. An attacker would need network access to the machine running GPAC to exploit this vulnerability.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the GPAC update that includes commit 2fd5a06ab226767900fd86edb5a1e8bfc1010640, the fixed version replacing v26.07.0.
  • Configure inbound filtering to block or rate‑limit malformed HTTP requests that could trigger the out‑of‑bounds read.
  • Continuously monitor GPAC process restarts and unusual memory usage to detect potential DoS attempts.

Generated by OpenCVE AI on September 21, 2026 at 07:58 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title GPAC Downloader Out-of-Bounds Read Leading to Denial of Service
Type Values Removed Values Added
Title Out‑of‑Bounds Read Causing DoS in GPAC Downloader
Weaknesses CWE-788
Type Values Removed Values Added
CPEs cpe:2.3:a:gpac:gpac:26.07.0:*:*:*:*:*:*:*
Type Values Removed Values Added
Weaknesses CWE-125
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Gpac
Gpac gpac
Vendors & Products Gpac
Gpac gpac
Type Values Removed Values Added
Title Out‑of‑Bounds Read Causing DoS in GPAC Downloader
Weaknesses CWE-788
Type Values Removed Values Added
Description An out-of-bounds read in the gf_dm_data_received function (downloader.c) of GPAC v26.07.0 allows attackers to cause a Denial of Service (DoS) via sending a crafted HTTP request. Fixed in 2fd5a06ab226767900fd86edb5a1e8bfc1010640.
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:R'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 14, 2026, 2:43 PM
Reserved
Aug 25, 2026, 12:00 AM
Status
Analyzed
Published
Sep 9, 2026, 9:17 PM
Modified
Sep 15, 2026, 5:03 PM