CVE-2026-8580

CRITICALNVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-14. NVD baseline CVSS 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: None knownExposed: 0

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

Use after free in Mojo in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
9.6
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
9.6(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

May 14, 2026

Last Modified

May 19, 2026

Advisory Details (2)

Auto-updated Aug 31, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/496639647
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html

Vendor Advisories for CVE-2026-8580(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
chromium100.0.4896.127-1 ... 99.0.4844.84-1~deb11u1 (500 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium113.0.5672.126-1 ... 148.0.7778.96-3 (353 versions)148.0.7778.167-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 148.0.7778.96-3 (119 versions)148.0.7778.167-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 148.0.7778.96-3 (120 versions)148.0.7778.167-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 126× 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. 2026-09-04 05:07 UTCEPSS rescore
  2. 2026-09-02 14:12 UTCEPSS rescore
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-09-01 04:40 UTCEPSS rescore
  5. 2026-08-30 19:18 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 21:40 UTCVendor advisory
  13. 2026-08-23 21:40 UTCGHSA enrichment
  14. 2026-08-23 17:34 UTCEG score recompute
  15. 2026-08-23 17:34 UTCVendor advisory
  16. 2026-08-23 17:34 UTCGHSA enrichment
  17. 2026-08-23 00:19 UTCEPSS rescore
  18. 2026-08-22 01:38 UTCEG score recompute
  19. 2026-08-22 01:38 UTCVendor advisory
  20. 2026-08-22 01:38 UTCGHSA enrichment
  21. 2026-08-21 23:49 UTCEPSS rescore
  22. 2026-08-20 22:56 UTCEPSS rescore
  23. 2026-08-20 19:30 UTCEG score recompute
  24. 2026-08-20 19:30 UTCVendor advisory
  25. 2026-08-20 19:30 UTCGHSA enrichment
Show 75 more
  1. 2026-08-19 17:04 UTCEPSS rescore
  2. 2026-08-18 13:49 UTCEPSS rescore
  3. 2026-08-18 13:49 UTCEPSS rescore
  4. 2026-08-17 14:41 UTCEG score recompute
  5. 2026-08-17 14:41 UTCVendor advisory
  6. 2026-08-17 14:41 UTCGHSA enrichment
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 10:20 UTCEG score recompute
  9. 2026-08-17 10:20 UTCVendor advisory
  10. 2026-08-17 10:20 UTCGHSA enrichment
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 12:03 UTCVendor advisory
  14. 2026-08-16 12:03 UTCGHSA enrichment
  15. 2026-08-16 07:57 UTCVendor advisory
  16. 2026-08-16 07:57 UTCGHSA enrichment
  17. 2026-08-16 03:52 UTCEG score recompute
  18. 2026-08-16 03:52 UTCVendor advisory
  19. 2026-08-16 03:52 UTCGHSA enrichment
  20. 2026-08-16 02:15 UTCEPSS rescore
  21. 2026-08-15 01:31 UTCEPSS rescore
  22. 2026-08-14 22:52 UTCVendor advisory
  23. 2026-08-14 22:52 UTCGHSA enrichment
  24. 2026-08-14 18:46 UTCVendor advisory
  25. 2026-08-14 18:46 UTCGHSA enrichment
  26. 2026-08-14 14:41 UTCVendor advisory
  27. 2026-08-14 14:41 UTCGHSA enrichment
  28. 2026-08-14 10:35 UTCGHSA enrichment
  29. 2026-08-14 06:27 UTCVendor advisory
  30. 2026-08-14 06:27 UTCGHSA enrichment
  31. 2026-08-14 02:22 UTCEG score recompute
  32. 2026-08-14 02:22 UTCVendor advisory
  33. 2026-08-14 02:22 UTCGHSA enrichment
  34. 2026-08-13 22:00 UTCEPSS rescore
  35. 2026-08-13 08:15 UTCVendor advisory
  36. 2026-08-13 08:14 UTCGHSA enrichment
  37. 2026-08-13 03:13 UTCGHSA enrichment
  38. 2026-08-12 23:08 UTCGHSA enrichment
  39. 2026-08-12 19:02 UTCVendor advisory
  40. 2026-08-12 19:02 UTCGHSA enrichment
  41. 2026-08-12 14:57 UTCEG score recompute
  42. 2026-08-12 14:57 UTCGHSA enrichment
  43. 2026-08-12 13:51 UTCEPSS rescore
  44. 2026-08-11 22:56 UTCVendor advisory
  45. 2026-08-11 22:56 UTCGHSA enrichment
  46. 2026-08-11 18:49 UTCVendor advisory
  47. 2026-08-11 18:49 UTCGHSA enrichment
  48. 2026-08-11 14:01 UTCEG score recompute
  49. 2026-08-11 14:01 UTCVendor advisory
  50. 2026-08-11 14:01 UTCGHSA enrichment
  51. 2026-08-11 13:43 UTCEPSS rescore
  52. 2026-08-11 09:01 UTCVendor advisory
  53. 2026-08-11 09:00 UTCGHSA enrichment
  54. 2026-08-11 04:55 UTCVendor advisory
  55. 2026-08-11 04:55 UTCGHSA enrichment
  56. 2026-08-11 00:50 UTCEG score recompute
  57. 2026-08-11 00:50 UTCVendor advisory
  58. 2026-08-11 00:50 UTCGHSA enrichment
  59. 2026-08-11 00:00 UTCEPSS rescore
  60. 2026-08-10 11:28 UTCGHSA enrichment
  61. 2026-08-10 06:54 UTCGHSA enrichment
  62. 2026-08-10 02:49 UTCVendor advisory
  63. 2026-08-10 02:49 UTCGHSA enrichment
  64. 2026-08-09 22:43 UTCGHSA enrichment
  65. 2026-08-09 18:38 UTCVendor advisory
  66. 2026-08-09 18:38 UTCGHSA enrichment
  67. 2026-08-09 14:32 UTCEG score recompute
  68. 2026-08-09 14:32 UTCGHSA enrichment
  69. 2026-08-09 13:47 UTCEPSS rescore
  70. 2026-08-09 10:27 UTCVendor advisory
  71. 2026-08-09 10:27 UTCGHSA enrichment
  72. 2026-08-09 05:53 UTCGHSA enrichment
  73. 2026-08-09 01:47 UTCEG score recompute
  74. 2026-08-09 01:47 UTCVendor advisory
  75. 2026-08-09 01:47 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-8580?
CVE-2026-8580 is a critical vulnerability published on May 14, 2026. Use after free in Mojo in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
When was CVE-2026-8580 disclosed?
CVE-2026-8580 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on May 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8580 actively exploited?
CVE-2026-8580 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 88.8% of all scored CVEs.
What is the CVSS score of CVE-2026-8580?
CVE-2026-8580 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-8580?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8580, 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

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