CVE-2026-78978

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

Out of bounds read in ANGLE in Google Chrome on on Windows prior to 152.0.7977.65 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
8.8
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
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/520464738
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-2026-78978(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 / 140× 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 140 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78978?
CVE-2026-78978 is a high vulnerability published on August 25, 2026. Out of bounds read in ANGLE in Google Chrome on on Windows prior to 152.0.7977.65 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
When was CVE-2026-78978 disclosed?
CVE-2026-78978 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-2026-78978 actively exploited?
CVE-2026-78978 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 62.1% of all scored CVEs.
What is the CVSS score of CVE-2026-78978?
CVE-2026-78978 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-78978?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78978, 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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