CVE-2026-78905

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM 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 weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Type confusion in ANGLE in Google Chrome 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
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100CISA 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
Severity88% × 45%
Exploitation40% × 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
0.6%
EPSS %ILE
48th
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 25, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Aug 26, 2026
Patch available.
generic

Chromium

https://issues.chromium.org/issues/517245017
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-2026-78905(4)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatwebkit2gtk3-0:2.54.0-1.el8_102026-09-30redhat
redhatwebkit2gtk3-0:2.54.0-1.el9_82026-09-21redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(9 across 3 ecosystems)
Debian:12(3)
PackageVulnerable rangeFix by version rangeDependents
chromium113.0.5672.126-1 ... 152.0.7977.64-1 (412 versions)
  • every version up to 152.0.7977.75-1~deb12u1: fixed in 152.0.7977.75-1~deb12u1
—
webkit2gtk2.40.1-1 ... 2.54.0-1~exp1 (168 versions)
  • every version on: no fix on record
—
wpewebkit2.38.6-1 ... 2.54.0-2 (56 versions)
  • every version on: no fix on record
—
Debian:13(3)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 152.0.7977.75-1~deb12u1 (178 versions)
  • every version up to 152.0.7977.75-1~deb13u1: fixed in 152.0.7977.75-1~deb13u1
—
webkit2gtk2.48.3-1 ... 2.53.92-1 (59 versions)
  • every version up to 2.54.0-1~deb13u1: fixed in 2.54.0-1~deb13u1
—
wpewebkit2.48.3-1 ... 2.54.0-2 (22 versions)
  • every version on: no fix on record
—
Debian:14(3)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb13u1 (176 versions)
  • every version up to 152.0.7977.64-1: fixed in 152.0.7977.64-1
—
webkit2gtk2.48.3-1 ... 2.54.0-1~exp1 (61 versions)
  • every version on: no fix on record
—
wpewebkit2.48.3-1 ... 2.52.6-1 (20 versions)
  • every version up to 2.54.0-1: fixed in 2.54.0-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 31× in last 7d / 153× 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 241 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

  • GitHub PoCvxssroott/CVE-2026-78905-Facebook-Account-Takeover
    Published Aug 30, 2026

    Social Media Infrastructure Vulnerability Research. CVE-2026-78905: OAuth token reuse and session hijacking in Facebook's Graph API.

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-78905?
CVE-2026-78905 is a high vulnerability published on August 25, 2026. Type confusion in ANGLE in Google Chrome 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-2026-78905 disclosed?
CVE-2026-78905 was first published 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-2026-78905 actively exploited?
CVE-2026-78905 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (48th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78905?
CVE-2026-78905 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-78905?
A fix for CVE-2026-78905 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-78905 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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