CVE-2026-78934

HIGHPre-NVD 8.38.3—
EchelonGraph scoreHIGH confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-25. 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%CVSS: 8.3Exploit: None knownExposed: 0

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

Race condition in ReadAloud in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox 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
8.3(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity83% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (2)

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

Chromium

https://issues.chromium.org/issues/517550232
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html

Vendor Advisories for CVE-2026-78934(1)

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 rangeFixed inDependents
chromium113.0.5672.126-1 ... 152.0.7977.64-1 (412 versions)152.0.7977.75-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 152.0.7977.75-1~deb12u1 (178 versions)152.0.7977.75-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 152.0.7977.75-1~deb13u1 (180 versions)——

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 38× in last 7d / 136× 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 136 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78934?
CVE-2026-78934 is a high vulnerability published on August 25, 2026. Race condition in ReadAloud in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-78934 disclosed?
CVE-2026-78934 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78934 actively exploited?
CVE-2026-78934 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 68.0% of all scored CVEs.
What is the CVSS score of CVE-2026-78934?
CVE-2026-78934 has a CVSS v3.1 base score of 8.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-78934?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78934, 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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