CVE-2026-52718

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-06-15. the CNA's CVSS baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad. The gst_av1_parser_parse_tile_list_obu() function passes a byte count to a bit-reader API that expects a bit count, causing parser desynchronization. A remote attacker could trick a user into opening a specially crafted AV1 media file, triggering an assertion abort and causing the application to crash.

CVSS v3
6.5
EG Score
6.5(high)
EPSS
22.5%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 16, 2026

Advisory Details (3)

Auto-updated Jun 15, 2026
Patch available. Sources: redhat.
generic

GStreamer / gstreamer · GitLab

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5103
redhat

2486328 – (CVE-2026-52718) CVE-2026-52718 gstreamer1-plugins-bad-free: GStreamer: Denial of service via AV1 tile_list_obu parser byte/bit confusion

https://bugzilla.redhat.com/show_bug.cgi?id=2486328
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-52718

Vendor Advisories for CVE-2026-52718(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 19× in last 7d / 69× 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. 2026-07-07 00:18 UTCEG score recompute
  2. 2026-07-07 00:18 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 12:00 UTCEG score recompute
  7. 2026-07-05 12:00 UTCGHSA enrichment
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 10:00 UTCEG score recompute
  10. 2026-07-04 09:59 UTCGHSA enrichment
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-03 07:16 UTCEG score recompute
  13. 2026-07-03 07:16 UTCGHSA enrichment
  14. 2026-07-02 03:39 UTCEG score recompute
  15. 2026-07-02 03:39 UTCGHSA enrichment
  16. 2026-07-01 15:07 UTCEPSS rescore
  17. 2026-07-01 01:37 UTCEG score recompute
  18. 2026-07-01 01:37 UTCGHSA enrichment
  19. 2026-06-30 23:22 UTCEPSS rescore
  20. 2026-06-29 23:35 UTCEG score recompute
  21. 2026-06-29 23:35 UTCGHSA enrichment
  22. 2026-06-29 14:06 UTCEPSS rescore
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-28 21:30 UTCEG score recompute
  25. 2026-06-28 21:30 UTCGHSA enrichment
Show 44 more
  1. 2026-06-28 14:07 UTCEPSS rescore
  2. 2026-06-28 04:56 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-27 19:28 UTCEG score recompute
  5. 2026-06-27 19:28 UTCGHSA enrichment
  6. 2026-06-27 03:08 UTCEPSS rescore
  7. 2026-06-26 17:25 UTCEG score recompute
  8. 2026-06-26 17:25 UTCGHSA enrichment
  9. 2026-06-25 15:23 UTCEG score recompute
  10. 2026-06-25 15:23 UTCGHSA enrichment
  11. 2026-06-25 13:49 UTCEPSS rescore
  12. 2026-06-24 14:05 UTCEPSS rescore
  13. 2026-06-24 13:21 UTCEG score recompute
  14. 2026-06-24 13:21 UTCGHSA enrichment
  15. 2026-06-23 21:33 UTCEPSS rescore
  16. 2026-06-23 21:33 UTCEPSS rescore
  17. 2026-06-23 10:15 UTCEG score recompute
  18. 2026-06-23 10:14 UTCGHSA enrichment
  19. 2026-06-22 14:25 UTCEPSS rescore
  20. 2026-06-22 14:25 UTCEPSS rescore
  21. 2026-06-22 08:11 UTCEG score recompute
  22. 2026-06-22 08:11 UTCGHSA enrichment
  23. 2026-06-21 14:56 UTCEPSS rescore
  24. 2026-06-21 14:56 UTCEPSS rescore
  25. 2026-06-21 05:34 UTCEG score recompute
  26. 2026-06-21 05:33 UTCGHSA enrichment
  27. 2026-06-21 01:59 UTCEPSS rescore
  28. 2026-06-21 01:59 UTCEPSS rescore
  29. 2026-06-20 03:32 UTCEG score recompute
  30. 2026-06-20 03:32 UTCGHSA enrichment
  31. 2026-06-19 19:26 UTCEPSS rescore
  32. 2026-06-19 19:26 UTCEPSS rescore
  33. 2026-06-19 01:26 UTCEG score recompute
  34. 2026-06-19 01:26 UTCGHSA enrichment
  35. 2026-06-18 17:52 UTCEPSS rescore
  36. 2026-06-18 17:52 UTCEPSS rescore
  37. 2026-06-17 23:25 UTCEG score recompute
  38. 2026-06-17 23:24 UTCGHSA enrichment
  39. 2026-06-17 17:53 UTCEPSS rescore
  40. 2026-06-16 21:21 UTCEG score recompute
  41. 2026-06-16 21:21 UTCGHSA enrichment
  42. 2026-06-16 17:53 UTCEPSS rescore
  43. 2026-06-15 19:20 UTCEG score recompute
  44. 2026-06-15 19:19 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-52718?
CVE-2026-52718 is a medium vulnerability published on June 15, 2026. A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad. The gstav1parserparsetilelistobu() function passes a byte count to a bit-reader API that expects a bit count, causing parser desynchronization. A remote attacker could trick a user into opening a…
When was CVE-2026-52718 disclosed?
CVE-2026-52718 was first published in the National Vulnerability Database on June 15, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52718 actively exploited?
CVE-2026-52718 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-52718?
CVE-2026-52718 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-52718?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52718, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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