CVE-2026-79522

MEDIUMNVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-09-09. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.5Exploit: Elevated riskExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

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.

CVSS v3
6.5
EG Score
6.5MEDIUMhigh confidence
EG Risk
45
EG Risk 45/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.5%
EPSS %ILE
43rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 9, 2026

Last Modified

September 15, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 2fd5a06ab226 (gpac/gpac)

Fix landed in gpac/gpac commit 2fd5a06ab226 — awaiting tagged release

https://github.com/gpac/gpac/commit/2fd5a06ab226767900fd86edb5a1e8bfc1010640
generic🟡 PoC Available

[Security] Out-of-bounds read in gf_dm_data_received (downloader.c) via crafted chunked HTTP response · Issue #3861 · gpac/gpac · GitHub

https://github.com/gpac/gpac/issues/3861

Vendor Advisories for CVE-2026-79522(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 74× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 13:13 UTCEG score recompute
  3. 2026-10-04 13:13 UTCGHSA enrichment
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-03 10:41 UTCEG score recompute
  6. 2026-10-03 10:41 UTCGHSA enrichment
  7. 2026-10-02 17:57 UTCEPSS rescore
  8. 2026-10-02 06:41 UTCEG score recompute
  9. 2026-10-02 06:41 UTCGHSA enrichment
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-10-01 04:23 UTCEG score recompute
  12. 2026-10-01 04:23 UTCGHSA enrichment
  13. 2026-09-30 02:12 UTCEG score recompute
  14. 2026-09-30 02:12 UTCGHSA enrichment
  15. 2026-09-29 15:24 UTCEPSS rescore
  16. 2026-09-28 20:25 UTCEG score recompute
  17. 2026-09-28 20:25 UTCGHSA enrichment
  18. 2026-09-28 13:52 UTCEPSS rescore
  19. 2026-09-27 17:25 UTCEG score recompute
  20. 2026-09-27 17:25 UTCGHSA enrichment
  21. 2026-09-27 13:48 UTCEPSS rescore
  22. 2026-09-26 15:59 UTCEPSS rescore
  23. 2026-09-26 15:13 UTCEG score recompute
  24. 2026-09-26 15:13 UTCGHSA enrichment
  25. 2026-09-26 00:28 UTCEPSS rescore
Show 49 more
  1. 2026-09-25 13:01 UTCEG score recompute
  2. 2026-09-25 13:01 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 10:49 UTCEG score recompute
  5. 2026-09-24 10:49 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 08:37 UTCEG score recompute
  8. 2026-09-23 08:37 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 06:25 UTCEG score recompute
  11. 2026-09-22 06:25 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 04:13 UTCEG score recompute
  14. 2026-09-21 04:13 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 02:01 UTCEG score recompute
  17. 2026-09-20 02:01 UTCGHSA enrichment
  18. 2026-09-18 23:49 UTCEG score recompute
  19. 2026-09-18 23:49 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-17 21:38 UTCEG score recompute
  22. 2026-09-17 21:38 UTCGHSA enrichment
  23. 2026-09-16 19:26 UTCEG score recompute
  24. 2026-09-16 19:26 UTCGHSA enrichment
  25. 2026-09-16 14:08 UTCEPSS rescore
  26. 2026-09-16 05:15 UTCEPSS rescore
  27. 2026-09-15 17:12 UTCEG score recompute
  28. 2026-09-15 17:12 UTCGHSA enrichment
  29. 2026-09-15 04:06 UTCEG score recompute
  30. 2026-09-15 04:06 UTCGHSA enrichment
  31. 2026-09-15 03:12 UTCEPSS rescore
  32. 2026-09-15 03:12 UTCEPSS rescore
  33. 2026-09-14 01:55 UTCEG score recompute
  34. 2026-09-14 01:55 UTCGHSA enrichment
  35. 2026-09-12 23:43 UTCEG score recompute
  36. 2026-09-12 23:43 UTCGHSA enrichment
  37. 2026-09-11 21:31 UTCEG score recompute
  38. 2026-09-11 21:31 UTCGHSA enrichment
  39. 2026-09-11 14:53 UTCEPSS rescore
  40. 2026-09-11 14:53 UTCEPSS rescore
  41. 2026-09-10 19:19 UTCEG score recompute
  42. 2026-09-10 19:19 UTCGHSA enrichment
  43. 2026-09-10 19:10 UTCEG score recompute
  44. 2026-09-10 19:10 UTCGHSA enrichment
  45. 2026-09-10 15:58 UTCEG score recompute
  46. 2026-09-10 15:58 UTCGHSA enrichment
  47. 2026-09-09 21:30 UTCEG score recompute
  48. 2026-09-09 20:25 UTCEG score recompute
  49. 2026-09-09 20:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-79522?
CVE-2026-79522 is a medium vulnerability published on September 9, 2026. An out-of-bounds read in the gfdmgetchunkdata 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.
When was CVE-2026-79522 disclosed?
CVE-2026-79522 was first published on September 9, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79522 actively exploited?
CVE-2026-79522 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-79522?
CVE-2026-79522 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-79522?
An upstream fix for CVE-2026-79522 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-79522 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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