CVE-2026-90603

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-09-14. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

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

A vulnerability was identified in Anil-matcha Open-Generative-AI up to 1.0.11/2.0.0. Affected by this issue is some unknown functionality of the file /api/upload-binary of the component S3 Upload. Such manipulation of the argument x-proxy-target-url leads to unrestricted upload. The attack may be launched remotely. The name of the patch is f013270957f75e439eaf97eb2a93decb32a4543e. Applying a patch is advised to resolve this issue.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity73% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

September 13, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Sep 13, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

Unauthenticated S3 Upload Proxy at /api/upload-binary Enables Arbitrary File Upload to Backend Object Storage and Leaks Presigned Upload Credentials · Issue #310 · Anil-matcha/Open-Generative-AI · GitHub

https://github.com/Anil-matcha/Open-Generative-AI/issues/310
github_commit

commit f013270957f7 (Anil-matcha/Open-Generative-AI)

Fix landed in Anil-matcha/Open-Generative-AI commit f013270957f7 — awaiting tagged release

https://github.com/Anil-matcha/Open-Generative-AI/commit/f013270957f75e439eaf97eb2a93decb32a4543e
generic

GitHub - Anil-matcha/Open-Generative-AI: Unrestricted Open-source alternative to AI video platforms — Free AI image & video generation studio with 600+ models (Flux, Midjourney, Kling, Sora, Veo). No content filters. Self-hosted, MIT licensed. · GitHub

https://github.com/Anil-matcha/Open-Generative-AI/

Vendor Advisories for CVE-2026-90603(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 31× in last 7d / 31× 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. 2026-09-20 13:35 UTCGHSA enrichment
  2. 2026-09-20 01:49 UTCEG score recompute
  3. 2026-09-20 01:49 UTCGHSA enrichment
  4. 2026-09-19 14:04 UTCGHSA enrichment
  5. 2026-09-19 02:18 UTCEG score recompute
  6. 2026-09-19 02:18 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 14:33 UTCGHSA enrichment
  9. 2026-09-18 02:47 UTCEG score recompute
  10. 2026-09-18 02:47 UTCGHSA enrichment
  11. 2026-09-17 19:32 UTCEPSS rescore
  12. 2026-09-17 15:01 UTCGHSA enrichment
  13. 2026-09-17 03:15 UTCGHSA enrichment
  14. 2026-09-16 15:29 UTCEG score recompute
  15. 2026-09-16 15:29 UTCGHSA enrichment
  16. 2026-09-16 14:26 UTCEG score recompute
  17. 2026-09-16 14:26 UTCGHSA enrichment
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 08:49 UTCEG score recompute
  20. 2026-09-16 08:49 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 20:48 UTCGHSA enrichment
  23. 2026-09-15 08:52 UTCEG score recompute
  24. 2026-09-15 08:52 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 6 more
  1. 2026-09-14 21:06 UTCGHSA enrichment
  2. 2026-09-14 11:05 UTCEG score recompute
  3. 2026-09-14 11:05 UTCGHSA enrichment
  4. 2026-09-13 23:20 UTCEG score recompute
  5. 2026-09-13 23:10 UTCEG score recompute
  6. 2026-09-13 23:09 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90603?
CVE-2026-90603 is a high vulnerability published on September 13, 2026. A vulnerability was identified in Anil-matcha Open-Generative-AI up to 1.0.11/2.0.0. Affected by this issue is some unknown functionality of the file /api/upload-binary of the component S3 Upload. Such manipulation of the argument x-proxy-target-url leads to unrestricted upload. The attack may be…
When was CVE-2026-90603 disclosed?
CVE-2026-90603 was first published in the National Vulnerability Database on September 13, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90603 actively exploited?
CVE-2026-90603 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 59.6% of all scored CVEs.
What is the CVSS score of CVE-2026-90603?
CVE-2026-90603 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-90603?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90603, 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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