CVE-2026-78935

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%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 of uninitialized variable in Mobile in Google Chrome on on iOS 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: Critical)

CVSS v3
9.6
Vendor severity
CRITICALper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Critical)
EG Score
9.6(high)
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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Chromium

https://issues.chromium.org/issues/522082472
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-2026-78935(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.

Data Freshness Timeline

(refreshed 56× in last 7d / 199× 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 199 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-78935?
CVE-2026-78935 is a critical vulnerability published on August 25, 2026. Use of uninitialized variable in Mobile in Google Chrome on on iOS 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: Critical)
When was CVE-2026-78935 disclosed?
CVE-2026-78935 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-2026-78935 actively exploited?
CVE-2026-78935 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.6% of all scored CVEs.
What is the CVSS score of CVE-2026-78935?
CVE-2026-78935 has a CVSS v3.1 base score of 9.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-78935?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78935, 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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