CVE-2026-91081

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreHIGH confidence

Score 5.8 from GitHub Security Advisory published 2026-09-14. a secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.8Exploit: None knownExposed: 0

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

Docs through 5.6.1 contains a server-side request forgery vulnerability in the cors-proxy endpoint that allows anonymous attackers to make outbound requests by providing a public document UUID. Attackers can exploit DNS time-of-check-time-of-use race conditions and shared address space bypasses to access internal network resources and exfiltrate image content.

CVSS v3
5.8
EG Score
5.8(high)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity58% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 20, 2026

Advisory Details (5)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

Docs through 5.6.1 SSRF via Unauthenticated cors-proxy Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/docs-through-5.6.1-ssrf-via-unauthenticated-cors-proxy-endpoint
generic

docs/src/backend/core/models.py at v5.6.1 · suitenumerique/docs · GitHub

https://github.com/suitenumerique/docs/blob/v5.6.1/src/backend/core/models.py
generic

docs/src/backend/core/api/viewsets.py at v5.6.1 · suitenumerique/docs · GitHub

https://github.com/suitenumerique/docs/blob/v5.6.1/src/backend/core/api/viewsets.py
generic

GitHub - suitenumerique/docs: Docs is an open-source text editor: web-native, made for real-time collaboration, cleanly structured documents and sub-documents with full ownership of your data. Built to scale with Django and React. · GitHub

https://github.com/suitenumerique/docs
generic

Unauthenticated SSRF via cors-proxy on public documents · Issue #2545 · suitenumerique/docs · GitHub

https://github.com/suitenumerique/docs/issues/2545

Vendor Advisories for CVE-2026-91081(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 23× in last 7d / 23× 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. 2026-09-21 01:23 UTCEG score recompute
  2. 2026-09-21 01:23 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 01:32 UTCEG score recompute
  5. 2026-09-20 01:32 UTCGHSA enrichment
  6. 2026-09-20 01:02 UTCEG score recompute
  7. 2026-09-20 01:02 UTCGHSA enrichment
  8. 2026-09-19 19:17 UTCEG score recompute
  9. 2026-09-19 19:17 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 19:24 UTCGHSA enrichment
  12. 2026-09-17 19:33 UTCEG score recompute
  13. 2026-09-17 19:33 UTCGHSA enrichment
  14. 2026-09-17 19:32 UTCEPSS rescore
  15. 2026-09-16 18:13 UTCEG score recompute
  16. 2026-09-16 18:13 UTCGHSA enrichment
  17. 2026-09-16 14:09 UTCEPSS rescore
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-15 18:22 UTCEG score recompute
  20. 2026-09-15 18:22 UTCGHSA enrichment
  21. 2026-09-14 18:31 UTCEG score recompute
  22. 2026-09-14 17:55 UTCEG score recompute
  23. 2026-09-14 17:54 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-91081?
CVE-2026-91081 is a medium vulnerability published on September 14, 2026. Docs through 5.6.1 contains a server-side request forgery vulnerability in the cors-proxy endpoint that allows anonymous attackers to make outbound requests by providing a public document UUID. Attackers can exploit DNS time-of-check-time-of-use race conditions and shared address space bypasses to…
When was CVE-2026-91081 disclosed?
CVE-2026-91081 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-91081 actively exploited?
CVE-2026-91081 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 83.5% of all scored CVEs.
What is the CVSS score of CVE-2026-91081?
CVE-2026-91081 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2026-91081?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-91081, 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-2026-91081

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