What is CVE-2026-79522?

CVE-2026-79522 is a medium-severity vulnerability in Gpac, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-09-09.

How severe is CVE-2026-79522?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Out-of-bounds Read in Gpac

CVE-2026-79522

An out-of-bounds read in the gf_dm_get_chunk_data function (src/utils/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.

Vulnerability class: Buffer Overflow

Published 2026-09-09 · last modified 2026-09-15.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (44.8th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Gpac — versions 26.07.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

github.com/gpac/gpac/issues/3861 (Exploit, Issue Tracking, Vendor Advisory)
github.com/gpac/gpac/commit/2fd5a06ab226767900fd86edb5a1e8bfc1010640 (Patch)

Frequently asked questions

What is CVE-2026-79522?: CVE-2026-79522 is a medium-severity vulnerability in Gpac, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-09-09.
How severe is CVE-2026-79522?: Medium severity. CVSS v3 base score is 6.5 out of 10.