CVE-2026-87640

MEDIUMNVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-09-09. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.1Exploit: None knownExposed services: Not assessed

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

Out of bounds read in WebView in Google Chrome on on Android prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
6.1
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
6.1MEDIUMhigh confidence
EG Risk
28
EG Risk 28/100CISA 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
18th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

September 9, 2026

Last Modified

September 10, 2026

Advisory Details (2)

Auto-updated Sep 10, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/498482618
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html

Vendor Advisories for CVE-2026-87640(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 ... 153.0.8010.47-2~deb13u1 (422 versions)
  • every version up to 153.0.8010.52-1~deb12u1: fixed in 153.0.8010.52-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 153.0.8010.47-2~deb12u1 (185 versions)
  • every version up to 153.0.8010.47-2~deb13u1: fixed in 153.0.8010.47-2~deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 152.0.7977.82-1~deb13u1 (183 versions)
  • every version up to 153.0.8010.47-1: fixed in 153.0.8010.47-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 76× 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.

  1. 2026-10-05 04:16 UTCEG score recompute
  2. 2026-10-05 04:16 UTCVendor advisory
  3. 2026-10-05 04:16 UTCGHSA enrichment
  4. 2026-10-04 23:22 UTCEPSS rescore
  5. 2026-10-04 04:01 UTCEG score recompute
  6. 2026-10-04 04:01 UTCVendor advisory
  7. 2026-10-04 04:01 UTCGHSA enrichment
  8. 2026-10-03 03:47 UTCEG score recompute
  9. 2026-10-03 03:47 UTCVendor advisory
  10. 2026-10-03 03:47 UTCGHSA enrichment
  11. 2026-10-02 03:29 UTCEG score recompute
  12. 2026-10-02 03:29 UTCVendor advisory
  13. 2026-10-02 03:29 UTCGHSA enrichment
  14. 2026-10-01 19:51 UTCEPSS rescore
  15. 2026-10-01 02:25 UTCEG score recompute
  16. 2026-10-01 02:25 UTCGHSA enrichment
  17. 2026-09-30 15:04 UTCEPSS rescore
  18. 2026-09-30 02:11 UTCEG score recompute
  19. 2026-09-30 02:10 UTCGHSA enrichment
  20. 2026-09-29 00:50 UTCEG score recompute
  21. 2026-09-29 00:50 UTCGHSA enrichment
  22. 2026-09-28 13:52 UTCEPSS rescore
  23. 2026-09-28 00:36 UTCEG score recompute
  24. 2026-09-28 00:36 UTCGHSA enrichment
  25. 2026-09-27 13:48 UTCEPSS rescore
Show 51 more
  1. 2026-09-27 00:22 UTCEG score recompute
  2. 2026-09-27 00:22 UTCGHSA enrichment
  3. 2026-09-26 15:59 UTCEPSS rescore
  4. 2026-09-25 23:55 UTCGHSA enrichment
  5. 2026-09-24 23:10 UTCEG score recompute
  6. 2026-09-24 23:10 UTCGHSA enrichment
  7. 2026-09-24 14:04 UTCEPSS rescore
  8. 2026-09-23 22:35 UTCEG score recompute
  9. 2026-09-23 22:35 UTCGHSA enrichment
  10. 2026-09-23 17:54 UTCEPSS rescore
  11. 2026-09-22 22:21 UTCGHSA enrichment
  12. 2026-09-21 22:04 UTCEG score recompute
  13. 2026-09-21 22:04 UTCGHSA enrichment
  14. 2026-09-21 21:09 UTCEPSS rescore
  15. 2026-09-20 21:50 UTCEG score recompute
  16. 2026-09-20 21:50 UTCGHSA enrichment
  17. 2026-09-20 20:16 UTCEPSS rescore
  18. 2026-09-19 21:35 UTCEG score recompute
  19. 2026-09-19 21:35 UTCGHSA enrichment
  20. 2026-09-18 21:20 UTCEG score recompute
  21. 2026-09-18 21:20 UTCGHSA enrichment
  22. 2026-09-18 19:28 UTCEPSS rescore
  23. 2026-09-17 20:16 UTCEG score recompute
  24. 2026-09-17 20:16 UTCGHSA enrichment
  25. 2026-09-17 19:32 UTCEPSS rescore
  26. 2026-09-16 18:14 UTCEG score recompute
  27. 2026-09-16 18:13 UTCGHSA enrichment
  28. 2026-09-16 14:09 UTCEPSS rescore
  29. 2026-09-16 05:15 UTCEPSS rescore
  30. 2026-09-15 17:35 UTCEG score recompute
  31. 2026-09-15 17:34 UTCGHSA enrichment
  32. 2026-09-15 03:12 UTCEPSS rescore
  33. 2026-09-14 17:20 UTCGHSA enrichment
  34. 2026-09-13 17:06 UTCEG score recompute
  35. 2026-09-13 17:06 UTCGHSA enrichment
  36. 2026-09-12 16:52 UTCEG score recompute
  37. 2026-09-12 16:52 UTCGHSA enrichment
  38. 2026-09-11 16:38 UTCEG score recompute
  39. 2026-09-11 16:38 UTCGHSA enrichment
  40. 2026-09-11 14:53 UTCEPSS rescore
  41. 2026-09-11 14:53 UTCEPSS rescore
  42. 2026-09-10 16:23 UTCGHSA enrichment
  43. 2026-09-10 15:40 UTCEG score recompute
  44. 2026-09-10 15:40 UTCGHSA enrichment
  45. 2026-09-10 14:17 UTCEG score recompute▼ 0.40
  46. 2026-09-10 14:17 UTCGHSA enrichment
  47. 2026-09-10 14:16 UTCNVD updateCVSS v3 → 6.1 · severity → MEDIUM
  48. 2026-09-09 15:59 UTCGHSA enrichment
  49. 2026-09-09 01:22 UTCNVD update
  50. 2026-09-09 01:02 UTCEG score recompute
  51. 2026-09-09 00:57 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-87640?
CVE-2026-87640 is a medium vulnerability published on September 9, 2026. Out of bounds read in WebView in Google Chrome on on Android prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
When was CVE-2026-87640 disclosed?
CVE-2026-87640 was first published on September 9, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-87640 actively exploited?
CVE-2026-87640 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-87640?
CVE-2026-87640 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-87640?
No fix for CVE-2026-87640 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-87640 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-87640

Explore →

Is Your Infrastructure Affected by CVE-2026-87640?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs