CVE-2026-19557

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Use after free in TabStrip in Google Chrome on Mac prior to 151.0.7922.137 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.3
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
8.3HIGHmedium confidence
EG Risk
37
EG Risk 37/100CISA SSVC

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
Severity83% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

August 17, 2026

Advisory Details (2)

Auto-updated Aug 12, 2026
Patch available.
generic

Chromium

https://issues.chromium.org/issues/534867485
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01815628406.html

Vendor Advisories for CVE-2026-19557(2)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
chromium113.0.5672.126-1 ... 151.0.7922.71-1~deb13u1 (401 versions)
  • every version up to 151.0.7922.137-1~deb12u1: fixed in 151.0.7922.137-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb13u1 (167 versions)
  • every version up to 151.0.7922.137-1~deb13u1: fixed in 151.0.7922.137-1~deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb13u1 (168 versions)
  • every version up to 151.0.7922.137-1: fixed in 151.0.7922.137-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 137× 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 280 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19557?
CVE-2026-19557 is a high vulnerability published on August 11, 2026. Use after free in TabStrip in Google Chrome on Mac prior to 151.0.7922.137 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-19557 disclosed?
CVE-2026-19557 was first published on August 11, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19557 actively exploited?
CVE-2026-19557 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19557?
CVE-2026-19557 has a CVSS v3.1 base score of 8.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-19557?
A fix for CVE-2026-19557 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-19557 are linked in the Vendor Advisories panel on this page.

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