CVE-2026-92791

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the testfs backend process.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 24, 2026

Advisory Details (6)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Uber Kraken through 0.1.29 Path Traversal via tag parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/uber-kraken-through-0.1.29-path-traversal-via-tag-parameter
generic

kraken/build-index/tagserver/server.go at v0.1.27 · uber/kraken · GitHub

https://github.com/uber/kraken/blob/v0.1.27/build-index/tagserver/server.go#L128-L129
generic

kraken/lib/backend/testfs/server.go at v0.1.27 · uber/kraken · GitHub

https://github.com/uber/kraken/blob/v0.1.27/lib/backend/testfs/server.go#L165-L173
generic

kraken/lib/backend/namepath/pather.go at v0.1.27 · uber/kraken · GitHub

https://github.com/uber/kraken/blob/v0.1.27/lib/backend/namepath/pather.go#L78-L84
generic

GitHub - uber/kraken: P2P Docker registry capable of distributing TBs of data in seconds · GitHub

https://github.com/uber/kraken
generic

Kraken build-index tag API path traversal allows unauthenticated file existence/size/content disclosure outside the configured backend root · Issue #645 · uber/kraken · GitHub

https://github.com/uber/kraken/issues/645

Vendor Advisories for CVE-2026-92791(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 31× in last 7d / 40× 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. 2026-09-25 08:54 UTCGHSA enrichment
  2. 2026-09-24 21:18 UTCGHSA enrichment
  3. 2026-09-24 14:12 UTCEG score recompute
  4. 2026-09-24 14:12 UTCGHSA enrichment
  5. 2026-09-24 14:04 UTCEPSS rescore
  6. 2026-09-24 02:26 UTCEG score recompute
  7. 2026-09-24 02:26 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 14:50 UTCGHSA enrichment
  10. 2026-09-23 03:14 UTCEG score recompute
  11. 2026-09-23 03:14 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 15:38 UTCGHSA enrichment
  14. 2026-09-22 04:02 UTCEG score recompute
  15. 2026-09-22 04:02 UTCGHSA enrichment
  16. 2026-09-21 21:09 UTCEPSS rescore
  17. 2026-09-21 16:26 UTCEG score recompute
  18. 2026-09-21 16:26 UTCGHSA enrichment
  19. 2026-09-21 15:45 UTCEG score recompute
  20. 2026-09-21 15:45 UTCGHSA enrichment
  21. 2026-09-21 05:52 UTCEG score recompute
  22. 2026-09-21 05:52 UTCGHSA enrichment
  23. 2026-09-20 20:16 UTCEPSS rescore
  24. 2026-09-20 18:16 UTCGHSA enrichment
  25. 2026-09-20 06:40 UTCGHSA enrichment
Show 15 more
  1. 2026-09-19 18:58 UTCEG score recompute
  2. 2026-09-19 18:58 UTCGHSA enrichment
  3. 2026-09-19 07:22 UTCGHSA enrichment
  4. 2026-09-18 19:47 UTCEG score recompute
  5. 2026-09-18 19:47 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 08:11 UTCGHSA enrichment
  8. 2026-09-17 20:35 UTCEG score recompute
  9. 2026-09-17 20:35 UTCGHSA enrichment
  10. 2026-09-17 19:32 UTCEPSS rescore
  11. 2026-09-17 08:59 UTCEG score recompute
  12. 2026-09-17 08:59 UTCGHSA enrichment
  13. 2026-09-16 21:23 UTCEG score recompute
  14. 2026-09-16 20:37 UTCEG score recompute
  15. 2026-09-16 20:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-92791?
CVE-2026-92791 is a high vulnerability published on September 16, 2026. Uber Kraken through 0.1.29 fails to validate the tag parameter in the /tags/{tag} endpoint, allowing unauthenticated attackers to traverse outside the configured storage root. Attackers can use percent-encoded parent-directory segments in the tag parameter to read arbitrary files accessible to the…
When was CVE-2026-92791 disclosed?
CVE-2026-92791 was first published in the National Vulnerability Database on September 16, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-92791 actively exploited?
CVE-2026-92791 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 52.9% of all scored CVEs.
What is the CVSS score of CVE-2026-92791?
CVE-2026-92791 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-92791?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-92791, 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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