CVE-2026-109292

MEDIUMPre-NVD 6.86.8
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 6.8 from GitHub Security Advisory (severity: HIGH) published 2026-10-12. The CNA's CVSS baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Elevated

Also known asEUVD-2026-97594 (ENISA EUVD) · GHSA-crcq-c44m-c92x (GitHub Security Advisories)Source: ENISA EUVD

6.8EG
EchelonGraph verdictPlan mitigationNo release containing the referenced fix is confirmed: check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.8Exploit: No code on recordExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

Open WebUI from 0.6.27 before 0.11.4 contains an information disclosure vulnerability that allows destination servers to obtain user session cookies by receiving the full browser cookie jar on OAuth-mode connections. Operators of OpenAI-compatible connections, OpenAPI tool servers or terminal servers can capture forwarded session cookies from routine requests and replay them to hijack accounts, including administrators.

CVSS v3
6.8
EG Score
6.8MEDIUMhigh confidence
EG Risk
47
EG Risk 47/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity68% × 45%
Impact severity (EG Severity): CVSS 6.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.8): severity, escalated by confirmed exploitation. This CVE's 6.8 is its impact severity (EG Severity), not escalated.

EG Severity
6.8 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 12, 2026

Last Modified

October 23, 2026

Advisory Details (5)

Auto-updated Oct 15, 2026
Fix referenced — no release confirmed yet. Sources: github, github_commit.
Web page

Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections | Advisories | VulnCheck

https://www.vulncheck.com/advisories/open-webui-0.6.27-before-0.11.4-session-token-disclosure-via-oauth-mode-connections
GitHub commit

commit 3cda47cdb449 (open-webui/open-webui)

Fix landed in open-webui/open-webui commit 3cda47cdb449 — awaiting tagged release

https://github.com/open-webui/open-webui/commit/3cda47cdb449aac970426f0929c9e5f8bb8bd807
GitHub commit

commit b71744b17823 (open-webui/open-webui)

Fix landed in open-webui/open-webui commit b71744b17823 — awaiting tagged release

https://github.com/open-webui/open-webui/commit/b71744b17823f7a3a9a64cb363e79a7164ed5b23
GitHub commit

commit f9f815c86220 (open-webui/open-webui)

Fix landed in open-webui/open-webui commit f9f815c86220 — awaiting tagged release

https://github.com/open-webui/open-webui/commit/f9f815c86220f809fad5ee1300c44f55dea74c79
GitHub advisoryMentions a patch (unverified)

Other users' session tokens disclosed via OAuth-mode connections, tool servers and terminals · Advisory · open-webui/open-webui · GitHub

Affected: 0.11.4 by

https://github.com/open-webui/open-webui/security/advisories/GHSA-gqfh-jxvw-74rp

Vendor Advisories for CVE-2026-109292(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 7× in last 7d / 35× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  4. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  6. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  7. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  8. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  9. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  10. 2026-10-25 14:53 UTCEG score recompute
  11. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  12. 2026-10-23 22:08 UTCEG score recompute
  13. 2026-10-23 22:08 UTCGHSA enrichmentGHSA-crcq-c44m-c92x · GitHub severity HIGH · GitHub CVSS 6.8
  14. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  15. 2026-10-23 08:15 UTCEG score recompute
  16. 2026-10-23 08:15 UTCGHSA enrichmentGHSA-crcq-c44m-c92x · GitHub severity HIGH · GitHub CVSS 6.8
  17. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  18. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  19. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  20. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  21. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  22. 2026-10-18 05:06 UTCEG score recompute
  23. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  24. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  25. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
Show 10 more
  1. 2026-10-15 16:10 UTCGHSA enrichmentGHSA-crcq-c44m-c92x · GitHub severity HIGH · GitHub CVSS 6.8
  2. 2026-10-15 03:25 UTCEG score recompute
  3. 2026-10-15 03:25 UTCGHSA enrichmentGHSA-crcq-c44m-c92x · GitHub severity HIGH · GitHub CVSS 6.8
  4. 2026-10-15 02:50 UTCEG score recompute
  5. 2026-10-15 02:49 UTCGHSA enrichmentGHSA-crcq-c44m-c92x · GitHub severity HIGH · GitHub CVSS 6.8
  6. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  7. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  8. 2026-10-12 17:27 UTCEG score recompute
  9. 2026-10-12 16:27 UTCEG score recomputeFirst assessed: 6.8 MEDIUM
  10. 2026-10-12 16:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-109292?
CVE-2026-109292 is a medium-severity vulnerability; its CVE record was published on October 12, 2026. Open WebUI from 0.6.27 before 0.11.4 contains an information disclosure vulnerability that allows destination servers to obtain user session cookies by receiving the full browser cookie jar on OAuth-mode connections. Operators of OpenAI-compatible connections, OpenAPI tool servers or terminal…
When was CVE-2026-109292 made public?
CVE-2026-109292 was made public on September 27, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on October 12, 2026. EchelonGraph's copy of the record carries a last-modified date of October 23, 2026; the record at its source may have been updated since.
Is CVE-2026-109292 actively exploited?
CVE-2026-109292 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-109292?
CVE-2026-109292 has a CVSS base score of 6.8 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-109292?
A fix for CVE-2026-109292 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-109292 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-109292

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