CVE-2026-59808

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-22. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

AVideo through commit 9c39d8c8 contains an authentication bypass vulnerability where deduplicateByEncoderQueueId() returns video_id_hash credentials for any video by encoder_queue_id without ownership verification, and useVideoHashOrLogin() converts this hash into passwordless login as the video owner. Attackers with upload permission can retrieve an administrator's video_id_hash by omitting the videos_id parameter, then use that hash in an unauthenticated request to gain administrative session access and modify system configuration.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 22, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

AVideo Authentication Bypass via Unkeyed Video Hash Disclosure | Advisories | VulnCheck

https://www.vulncheck.com/advisories/avideo-authentication-bypass-via-unkeyed-video-hash-disclosure
github Patch Available🟡 PoC Available

Authentication bypass: `deduplicateByEncoderQueueId()` returns another user's `video_id_hash`, and `useVideoHashOrLogin()` turns that hash into a password-less login as the video owner · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-q32p-rw3q-8x3r

Vendor Advisories for CVE-2026-59808(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 28× in last 7d / 33× 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. 2026-08-30 03:20 UTCEG score recompute
  2. 2026-08-30 03:20 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-29 14:11 UTCGHSA enrichment
  5. 2026-08-29 01:01 UTCEG score recompute
  6. 2026-08-29 01:01 UTCGHSA enrichment
  7. 2026-08-28 21:42 UTCEPSS rescore
  8. 2026-08-28 09:01 UTCGHSA enrichment
  9. 2026-08-27 19:50 UTCEG score recompute
  10. 2026-08-27 19:50 UTCGHSA enrichment
  11. 2026-08-27 14:25 UTCEPSS rescore
  12. 2026-08-27 06:41 UTCGHSA enrichment
  13. 2026-08-26 17:25 UTCEG score recompute
  14. 2026-08-26 17:25 UTCGHSA enrichment
  15. 2026-08-26 14:46 UTCEPSS rescore
  16. 2026-08-26 11:53 UTCGHSA enrichment
  17. 2026-08-25 22:44 UTCEG score recompute
  18. 2026-08-25 22:44 UTCGHSA enrichment
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-25 09:35 UTCGHSA enrichment
  21. 2026-08-24 20:27 UTCEG score recompute
  22. 2026-08-24 20:27 UTCGHSA enrichment
  23. 2026-08-24 19:36 UTCEG score recompute
  24. 2026-08-24 19:36 UTCGHSA enrichment
  25. 2026-08-24 17:56 UTCEG score recompute
Show 8 more
  1. 2026-08-24 17:56 UTCGHSA enrichment
  2. 2026-08-24 04:48 UTCGHSA enrichment
  3. 2026-08-23 15:39 UTCGHSA enrichment
  4. 2026-08-23 02:30 UTCEG score recompute
  5. 2026-08-23 02:30 UTCGHSA enrichment
  6. 2026-08-22 13:21 UTCEG score recompute
  7. 2026-08-22 12:46 UTCEG score recompute
  8. 2026-08-22 12:45 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-59808?
CVE-2026-59808 is a high vulnerability published on August 22, 2026. AVideo through commit 9c39d8c8 contains an authentication bypass vulnerability where deduplicateByEncoderQueueId() returns videoidhash credentials for any video by encoderqueueid without ownership verification, and useVideoHashOrLogin() converts this hash into passwordless login as the video owner.…
When was CVE-2026-59808 disclosed?
CVE-2026-59808 was first published in the National Vulnerability Database on August 22, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59808 actively exploited?
CVE-2026-59808 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 73.9% of all scored CVEs.
What is the CVSS score of CVE-2026-59808?
CVE-2026-59808 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-59808?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59808, 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

Explore the affected products and dependency analysis for CVE-2026-59808

Explore →

Is Your Infrastructure Affected by CVE-2026-59808?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs