CVE-2026-92811

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

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, GitHub Security Advisory, a secondary CVSS source
Elevated

Also known asEUVD-2026-81069 (ENISA EUVD) · GHSA-w2m9-jxm7-c4jp (GitHub Security Advisories)Source: ENISA EUVD

6.5EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (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: 0.5%CVSS: 6.5Exploit: No code on recordExposed services: Not assessed

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

The CVE record's CNA (VulnCheck) lists browserless versions 1.44.0 up to and including 2.56.7 as affected. No release containing a fix is confirmed on record.

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
6.5MEDIUMmedium confidence
EG Risk
45
EG Risk 45/100

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)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 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 or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.5%
EPSS %ILE
39th
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 (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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 or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 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 or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

September 16, 2026

Last Modified

September 22, 2026

Advisory Details (5)

Auto-updated Sep 16, 2026
No fix on record yet.
Web page

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
Web page

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
Web page

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
Web page

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
Web page

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 8× in last 7d / 54× 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.

Showing the most recent 99 of 103 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 4 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  4. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  5. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  6. 2026-10-28 02:55 UTCOSV refresh
  7. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  8. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  10. 2026-10-25 13:50 UTCEG score recompute
  11. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  14. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  16. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  17. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  18. 2026-10-18 02:59 UTCEG score recompute
  19. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  20. 2026-10-16 21:56 UTCEG score recompute
  21. 2026-10-16 21:55 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  22. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  23. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  24. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  25. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 37th percentile
Show 74 more
  1. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  2. 2026-10-12 14:44 UTCEG score recompute
  3. 2026-10-11 19:13 UTCEG score recompute
  4. 2026-10-11 16:29 UTCEG score recompute
  5. 2026-10-11 15:23 UTCEG score recompute
  6. 2026-10-11 15:23 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  7. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  8. 2026-10-11 13:43 UTCEG score recompute
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  10. 2026-10-10 14:30 UTCEG score recompute
  11. 2026-10-10 14:30 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  12. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  13. 2026-10-09 13:37 UTCEG score recompute
  14. 2026-10-09 13:37 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  15. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  16. 2026-10-08 10:58 UTCEG score recompute
  17. 2026-10-08 10:58 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  19. 2026-10-07 10:05 UTCEG score recompute
  20. 2026-10-07 10:05 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  21. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  22. 2026-10-06 09:11 UTCEG score recompute
  23. 2026-10-06 09:11 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  24. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  25. 2026-10-05 08:19 UTCEG score recompute
  26. 2026-10-05 08:19 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  27. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  28. 2026-10-04 07:26 UTCEG score recompute
  29. 2026-10-04 07:26 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  30. 2026-10-03 06:34 UTCEG score recompute
  31. 2026-10-03 06:34 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  32. 2026-10-02 05:41 UTCEG score recompute
  33. 2026-10-02 05:41 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  34. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  35. 2026-10-01 04:24 UTCEG score recompute
  36. 2026-10-01 04:24 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  37. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  38. 2026-09-30 03:31 UTCEG score recompute
  39. 2026-09-30 03:31 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  40. 2026-09-29 02:39 UTCEG score recompute
  41. 2026-09-29 02:39 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  42. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  43. 2026-09-28 01:46 UTCEG score recompute
  44. 2026-09-28 01:46 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  45. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  46. 2026-09-27 00:47 UTCEG score recompute
  47. 2026-09-27 00:47 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  48. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  49. 2026-09-25 23:53 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  50. 2026-09-24 23:00 UTCEG score recompute
  51. 2026-09-24 23:00 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  52. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  53. 2026-09-23 21:46 UTCEG score recompute
  54. 2026-09-23 21:46 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  55. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  56. 2026-09-22 20:53 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  57. 2026-09-22 17:18 UTCEG score recompute
  58. 2026-09-22 17:18 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  59. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  60. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  61. 2026-09-21 16:26 UTCEG score recompute
  62. 2026-09-21 16:26 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  63. 2026-09-21 15:45 UTCEG score recompute
  64. 2026-09-21 15:45 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  65. 2026-09-21 00:54 UTCEG score recompute
  66. 2026-09-21 00:54 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  67. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  68. 2026-09-20 00:01 UTCEG score recompute
  69. 2026-09-20 00:01 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  70. 2026-09-18 23:08 UTCEG score recompute
  71. 2026-09-18 23:08 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5
  72. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  73. 2026-09-17 22:16 UTCEG score recompute
  74. 2026-09-17 22:16 UTCGHSA enrichmentGHSA-w2m9-jxm7-c4jp · GitHub severity HIGH · GitHub CVSS 6.5

Frequently asked(5)

What is CVE-2026-92811?
CVE-2026-92811 is a medium-severity vulnerability; its CVE record was 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 made public?
CVE-2026-92811 was made public on September 16, 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 September 16, 2026. EchelonGraph's copy of the record carries a last-modified date of September 22, 2026; the record at its source may have been updated since.
Is CVE-2026-92811 actively exploited?
CVE-2026-92811 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-92811?
CVE-2026-92811 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-92811?
No fix for CVE-2026-92811 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VulnCheck) lists browserless versions 1.44.0 up to and including 2.56.7 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-92811 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-92811

Explore →

Is Your Infrastructure Affected by CVE-2026-92811?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.