CVE-2026-92811

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

browserless versions 1.44.0 through 2.56.7 fail to enforce file protocol restrictions in Playwright websocket endpoints, allowing authenticated token holders to read arbitrary files. Attackers can navigate Playwright-driven browsers to file scheme URLs and access files accessible to the container process despite the ALLOW_FILE_PROTOCOL setting defaulting to false.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 22, 2026

Advisory Details (5)

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

browserless 1.44.0 through 2.56.7 File Protocol Restriction Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/browserless-1.44.0-through-2.56.7-file-protocol-restriction-bypass
generic

GitHub - browserless/browserless: Deploy headless browsers in Docker. Run on our cloud or bring your own. Free for non-commercial uses. · GitHub

https://github.com/browserless/browserless
generic

browserless/src/browsers/browsers.playwright.ts at v2.50.1 · browserless/browserless · GitHub

https://github.com/browserless/browserless/blob/v2.50.1/src/browsers/browsers.playwright.ts
generic

browserless/src/browsers/browsers.cdp.ts at v2.50.1 · browserless/browserless · GitHub

https://github.com/browserless/browserless/blob/v2.50.1/src/browsers/browsers.cdp.ts#L105-L135
generic

oss/browserless.md at main · geo-chen/oss · GitHub

https://github.com/geo-chen/oss/blob/main/browserless.md

Vendor Advisories for CVE-2026-92811(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 / 29× 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. 2026-09-24 23:00 UTCEG score recompute
  2. 2026-09-24 23:00 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 21:46 UTCEG score recompute
  5. 2026-09-23 21:46 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 20:53 UTCGHSA enrichment
  8. 2026-09-22 17:18 UTCEG score recompute
  9. 2026-09-22 17:18 UTCGHSA enrichment
  10. 2026-09-22 16:01 UTCEPSS rescore
  11. 2026-09-21 21:09 UTCEPSS rescore
  12. 2026-09-21 16:26 UTCEG score recompute
  13. 2026-09-21 16:26 UTCGHSA enrichment
  14. 2026-09-21 15:45 UTCEG score recompute
  15. 2026-09-21 15:45 UTCGHSA enrichment
  16. 2026-09-21 00:54 UTCEG score recompute
  17. 2026-09-21 00:54 UTCGHSA enrichment
  18. 2026-09-20 20:16 UTCEPSS rescore
  19. 2026-09-20 00:01 UTCEG score recompute
  20. 2026-09-20 00:01 UTCGHSA enrichment
  21. 2026-09-18 23:08 UTCEG score recompute
  22. 2026-09-18 23:08 UTCGHSA enrichment
  23. 2026-09-18 19:28 UTCEPSS rescore
  24. 2026-09-17 22:16 UTCEG score recompute
  25. 2026-09-17 22:16 UTCGHSA enrichment
Show 4 more
  1. 2026-09-17 19:32 UTCEPSS rescore
  2. 2026-09-16 21:23 UTCEG score recompute
  3. 2026-09-16 20:36 UTCEG score recompute
  4. 2026-09-16 20:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-92811?
CVE-2026-92811 is a medium vulnerability published on September 16, 2026. browserless versions 1.44.0 through 2.56.7 fail to enforce file protocol restrictions in Playwright websocket endpoints, allowing authenticated token holders to read arbitrary files. Attackers can navigate Playwright-driven browsers to file scheme URLs and access files accessible to the container…
When was CVE-2026-92811 disclosed?
CVE-2026-92811 was first published in the National Vulnerability Database on September 16, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-92811 actively exploited?
CVE-2026-92811 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 63.4% of all scored CVEs.
What is the CVSS score of CVE-2026-92811?
CVE-2026-92811 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-92811?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-92811, 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-2026-92811

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