CVE-2026-8094

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-07. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

May 7, 2026

Last Modified

July 29, 2026

Advisory Details (13)

Auto-updated Aug 26, 2026
No patch confirmed yet.
generic

Security Vulnerabilities fixed in Thunderbird 140.10.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2026-44/
generic

Security Vulnerabilities fixed in Firefox ESR 140.10.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2026-41/
generic

Access Denied

https://bugzilla.mozilla.org/show_bug.cgi?id=2035939
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:24508
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:22643
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:22325
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:21381
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:20574
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:20566
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:19160
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.0 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:24511
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:24510
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:24509

Vendor Advisories for CVE-2026-8094(20)

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

Patch Availability(21)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatthunderbird-0:140.11.0-1.el8_62026-06-17redhat
redhatthunderbird-0:140.11.0-1.el9_62026-06-17redhat
redhatthunderbird-0:140.11.0-1.el10_02026-06-17redhat
redhatthunderbird-0:140.11.0-1.el8_42026-06-16redhat
redhatthunderbird-0:140.11.0-1.el9_42026-06-16redhat
redhatthunderbird-0:140.11.0-1.el8_82026-06-16redhat
redhatthunderbird-0:140.11.0-1.el9_22026-06-16redhat
redhatfirefox-0:140.10.2-1.el7_92026-06-10redhat
redhatfirefox-0:140.10.2-1.el8_62026-06-10redhat
redhatfirefox-0:140.10.2-1.el8_82026-06-09redhat
redhatfirefox-0:140.10.2-1.el9_62026-06-08redhat
redhatfirefox-0:140.10.2-1.el10_02026-06-08redhat
redhatfirefox-0:140.10.2-1.el8_42026-06-08redhat
redhatfirefox-0:140.10.2-1.el9_22026-06-08redhat
redhatfirefox-0:140.10.2-1.el9_42026-06-08redhat
redhatthunderbird-0:140.11.0-1.el8_102026-06-03redhat
redhatthunderbird-0:140.11.0-1.el10_22026-06-01redhat
redhatthunderbird-0:140.11.0-1.el9_82026-05-27redhat
redhatfirefox-0:140.10.2-1.el8_102026-05-26redhat
redhatfirefox-0:140.10.2-1.el9_82026-05-26redhat
redhatfirefox-0:140.10.2-1.el10_22026-05-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(8 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
firefox-esr102.1.0esr-1 ... 91.9.1esr-1~deb9u1 (271 versions)140.10.2esr-1~deb11u1—
thunderbird1:102.0.1-1 ... 1:91.9.0-1~deb9u1 (322 versions)1:140.10.2esr-1~deb11u1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
firefox-esr102.11.0esr-1 ... 140.9.1esr-1~deb13u1 (178 versions)140.10.2esr-1~deb12u1—
thunderbird1:102.11.0-1 ... 1:140.9.1esr-1~deb13u1 (207 versions)1:140.10.2esr-1~deb12u1—
Debian:13(2)
PackageVulnerable rangeFixed inDependents
firefox-esr128.13.0esr-1 ... 140.9.1esr-1~deb13u1 (54 versions)140.10.2esr-1~deb13u1—
thunderbird1:128.13.0esr-1 ... 1:140.9.1esr-1~deb13u1 (63 versions)1:140.10.2esr-1~deb13u1—
Debian:14(2)
PackageVulnerable rangeFixed inDependents
firefox-esr128.13.0esr-1 ... 140.9.1esr-1~deb13u1 (55 versions)140.10.2esr-1—
thunderbird1:128.13.0esr-1 ... 1:140.9.1esr-1~deb13u1 (64 versions)1:140.10.2esr-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 9× in last 7d / 154× 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.

Showing the most recent 100 of 437 total refreshes for this CVE.

  1. 2026-09-01 13:54 UTCEPSS rescore
  2. 2026-09-01 04:40 UTCEPSS rescore
  3. 2026-09-01 04:40 UTCEPSS rescore
  4. 2026-08-30 19:18 UTCEPSS rescore
  5. 2026-08-30 19:17 UTCEPSS rescore
  6. 2026-08-30 01:22 UTCEPSS rescore
  7. 2026-08-28 21:42 UTCEPSS rescore
  8. 2026-08-27 14:25 UTCEPSS rescore
  9. 2026-08-26 14:47 UTCEPSS rescore
  10. 2026-08-25 13:49 UTCEPSS rescore
  11. 2026-08-24 14:18 UTCEPSS rescore
  12. 2026-08-23 19:37 UTCEG score recompute
  13. 2026-08-23 19:37 UTCVendor advisory
  14. 2026-08-23 19:37 UTCGHSA enrichment
  15. 2026-08-23 00:19 UTCEPSS rescore
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-20 22:56 UTCEPSS rescore
  18. 2026-08-19 17:04 UTCEPSS rescore
  19. 2026-08-18 13:49 UTCEPSS rescore
  20. 2026-08-18 13:49 UTCEPSS rescore
  21. 2026-08-17 13:47 UTCEPSS rescore
  22. 2026-08-17 12:45 UTCEG score recompute
  23. 2026-08-17 12:45 UTCVendor advisory
  24. 2026-08-17 12:44 UTCGHSA enrichment
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 75 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 12:07 UTCVendor advisory
  3. 2026-08-16 12:07 UTCGHSA enrichment
  4. 2026-08-16 08:26 UTCVendor advisory
  5. 2026-08-16 08:26 UTCGHSA enrichment
  6. 2026-08-16 04:44 UTCEG score recompute
  7. 2026-08-16 04:44 UTCVendor advisory
  8. 2026-08-16 04:44 UTCGHSA enrichment
  9. 2026-08-16 02:15 UTCEPSS rescore
  10. 2026-08-15 01:35 UTCEG score recompute
  11. 2026-08-15 01:35 UTCVendor advisory
  12. 2026-08-15 01:35 UTCGHSA enrichment
  13. 2026-08-15 01:31 UTCEPSS rescore
  14. 2026-08-14 21:54 UTCVendor advisory
  15. 2026-08-14 21:54 UTCGHSA enrichment
  16. 2026-08-14 18:11 UTCVendor advisory
  17. 2026-08-14 18:11 UTCGHSA enrichment
  18. 2026-08-14 14:29 UTCVendor advisory
  19. 2026-08-14 14:29 UTCGHSA enrichment
  20. 2026-08-14 10:45 UTCVendor advisory
  21. 2026-08-14 10:45 UTCGHSA enrichment
  22. 2026-08-14 07:03 UTCVendor advisory
  23. 2026-08-14 07:03 UTCGHSA enrichment
  24. 2026-08-14 03:19 UTCEG score recompute
  25. 2026-08-14 03:19 UTCVendor advisory
  26. 2026-08-14 03:19 UTCGHSA enrichment
  27. 2026-08-13 22:00 UTCEPSS rescore
  28. 2026-08-13 08:20 UTCVendor advisory
  29. 2026-08-13 08:20 UTCGHSA enrichment
  30. 2026-08-13 03:59 UTCVendor advisory
  31. 2026-08-13 03:59 UTCGHSA enrichment
  32. 2026-08-13 00:18 UTCVendor advisory
  33. 2026-08-13 00:17 UTCGHSA enrichment
  34. 2026-08-12 20:35 UTCVendor advisory
  35. 2026-08-12 20:35 UTCGHSA enrichment
  36. 2026-08-12 16:53 UTCEG score recompute
  37. 2026-08-12 16:53 UTCVendor advisory
  38. 2026-08-12 16:53 UTCGHSA enrichment
  39. 2026-08-12 13:51 UTCEPSS rescore
  40. 2026-08-11 23:25 UTCVendor advisory
  41. 2026-08-11 23:24 UTCGHSA enrichment
  42. 2026-08-11 19:43 UTCVendor advisory
  43. 2026-08-11 19:42 UTCGHSA enrichment
  44. 2026-08-11 15:56 UTCEG score recompute
  45. 2026-08-11 15:56 UTCVendor advisory
  46. 2026-08-11 15:56 UTCGHSA enrichment
  47. 2026-08-11 13:43 UTCEPSS rescore
  48. 2026-08-11 08:50 UTCVendor advisory
  49. 2026-08-11 08:50 UTCGHSA enrichment
  50. 2026-08-11 05:07 UTCVendor advisory
  51. 2026-08-11 05:07 UTCGHSA enrichment
  52. 2026-08-11 01:26 UTCEG score recompute
  53. 2026-08-11 01:26 UTCVendor advisory
  54. 2026-08-11 01:26 UTCGHSA enrichment
  55. 2026-08-11 00:00 UTCEPSS rescore
  56. 2026-08-10 12:44 UTCVendor advisory
  57. 2026-08-10 12:44 UTCGHSA enrichment
  58. 2026-08-10 08:42 UTCVendor advisory
  59. 2026-08-10 08:42 UTCGHSA enrichment
  60. 2026-08-10 05:00 UTCVendor advisory
  61. 2026-08-10 05:00 UTCGHSA enrichment
  62. 2026-08-10 01:17 UTCVendor advisory
  63. 2026-08-10 01:17 UTCGHSA enrichment
  64. 2026-08-09 21:35 UTCVendor advisory
  65. 2026-08-09 21:35 UTCGHSA enrichment
  66. 2026-08-09 17:53 UTCVendor advisory
  67. 2026-08-09 17:53 UTCGHSA enrichment
  68. 2026-08-09 14:12 UTCEG score recompute
  69. 2026-08-09 14:12 UTCVendor advisory
  70. 2026-08-09 14:12 UTCGHSA enrichment
  71. 2026-08-09 13:47 UTCEPSS rescore
  72. 2026-08-09 10:30 UTCVendor advisory
  73. 2026-08-09 10:30 UTCGHSA enrichment
  74. 2026-08-09 06:12 UTCVendor advisory
  75. 2026-08-09 06:12 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-8094?
CVE-2026-8094 is a critical vulnerability published on May 7, 2026. Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2.
When was CVE-2026-8094 disclosed?
CVE-2026-8094 was first published in the National Vulnerability Database on May 7, 2026, with the most recent update on July 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8094 actively exploited?
CVE-2026-8094 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 62.8% of all scored CVEs.
What is the CVSS score of CVE-2026-8094?
CVE-2026-8094 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-8094?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8094, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-8094

Explore →

Is Your Infrastructure Affected by CVE-2026-8094?

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

Start Free Scan →Browse All CVEs