CVE-2026-84323

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

Missing authorization in FileSystem in Google Chrome prior to 152.0.7977.75 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
5.3
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
5.3(high)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 3, 2026

Advisory Details (2)

Auto-updated Sep 2, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/502411391
generic

Chrome Releases: Stable Channel Update for Desktop

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

Vendor Advisories for CVE-2026-84323(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 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 27× in last 7d / 86× 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. 2026-09-24 23:19 UTCEG score recompute
  2. 2026-09-24 23:19 UTCVendor advisory
  3. 2026-09-24 23:19 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-23 21:28 UTCEG score recompute
  6. 2026-09-23 21:28 UTCVendor advisory
  7. 2026-09-23 21:28 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-22 20:01 UTCEG score recompute
  10. 2026-09-22 20:01 UTCVendor advisory
  11. 2026-09-22 20:00 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-21 21:09 UTCEPSS rescore
  14. 2026-09-21 18:32 UTCEG score recompute
  15. 2026-09-21 18:32 UTCVendor advisory
  16. 2026-09-21 18:32 UTCGHSA enrichment
  17. 2026-09-20 20:16 UTCEPSS rescore
  18. 2026-09-20 17:03 UTCEG score recompute
  19. 2026-09-20 17:03 UTCVendor advisory
  20. 2026-09-20 17:03 UTCGHSA enrichment
  21. 2026-09-19 15:34 UTCEG score recompute
  22. 2026-09-19 15:34 UTCVendor advisory
  23. 2026-09-19 15:34 UTCGHSA enrichment
  24. 2026-09-18 19:28 UTCEPSS rescore
  25. 2026-09-18 13:57 UTCEG score recompute
Show 61 more
  1. 2026-09-18 13:57 UTCVendor advisory
  2. 2026-09-18 13:57 UTCGHSA enrichment
  3. 2026-09-17 19:32 UTCEPSS rescore
  4. 2026-09-17 12:21 UTCEG score recompute
  5. 2026-09-17 12:21 UTCVendor advisory
  6. 2026-09-17 12:21 UTCGHSA enrichment
  7. 2026-09-16 14:09 UTCEPSS rescore
  8. 2026-09-16 10:52 UTCEG score recompute
  9. 2026-09-16 10:52 UTCVendor advisory
  10. 2026-09-16 10:52 UTCGHSA enrichment
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 09:24 UTCEG score recompute
  13. 2026-09-15 09:24 UTCVendor advisory
  14. 2026-09-15 09:24 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 07:56 UTCEG score recompute
  18. 2026-09-14 07:56 UTCVendor advisory
  19. 2026-09-14 07:56 UTCGHSA enrichment
  20. 2026-09-13 06:28 UTCEG score recompute
  21. 2026-09-13 06:28 UTCVendor advisory
  22. 2026-09-13 06:28 UTCGHSA enrichment
  23. 2026-09-12 05:00 UTCEG score recompute
  24. 2026-09-12 05:00 UTCVendor advisory
  25. 2026-09-12 05:00 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 03:32 UTCEG score recompute
  29. 2026-09-11 03:32 UTCGHSA enrichment
  30. 2026-09-10 02:04 UTCGHSA enrichment
  31. 2026-09-09 00:36 UTCEG score recompute
  32. 2026-09-09 00:36 UTCVendor advisory
  33. 2026-09-09 00:36 UTCGHSA enrichment
  34. 2026-09-08 22:01 UTCEPSS rescore
  35. 2026-09-07 23:08 UTCEG score recompute
  36. 2026-09-07 23:08 UTCVendor advisory
  37. 2026-09-07 23:07 UTCGHSA enrichment
  38. 2026-09-06 21:39 UTCEG score recompute
  39. 2026-09-06 21:39 UTCVendor advisory
  40. 2026-09-06 21:39 UTCGHSA enrichment
  41. 2026-09-06 13:48 UTCEPSS rescore
  42. 2026-09-05 20:10 UTCEG score recompute
  43. 2026-09-05 20:10 UTCVendor advisory
  44. 2026-09-05 20:10 UTCGHSA enrichment
  45. 2026-09-05 15:31 UTCEPSS rescore
  46. 2026-09-04 18:43 UTCEG score recompute
  47. 2026-09-04 18:43 UTCVendor advisory
  48. 2026-09-04 18:43 UTCGHSA enrichment
  49. 2026-09-04 05:07 UTCEPSS rescore
  50. 2026-09-03 17:15 UTCGHSA enrichment
  51. 2026-09-03 16:55 UTCGHSA enrichment
  52. 2026-09-03 11:51 UTCEG score recompute
  53. 2026-09-03 11:51 UTCGHSA enrichment
  54. 2026-09-02 14:12 UTCEPSS rescore
  55. 2026-09-02 10:22 UTCGHSA enrichment
  56. 2026-09-02 09:54 UTCEG score recompute▼ 1.20
  57. 2026-09-02 09:54 UTCGHSA enrichment
  58. 2026-09-02 09:53 UTCMITRE cvelistV5CVSS v3 → 5.3 · severity → MEDIUM
  59. 2026-09-02 00:22 UTCNVD update
  60. 2026-09-01 23:50 UTCEG score recompute
  61. 2026-09-01 23:50 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84323?
CVE-2026-84323 is a medium vulnerability published on September 1, 2026. Missing authorization in FileSystem in Google Chrome prior to 152.0.7977.75 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)
When was CVE-2026-84323 disclosed?
CVE-2026-84323 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84323 actively exploited?
CVE-2026-84323 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 82.6% of all scored CVEs.
What is the CVSS score of CVE-2026-84323?
CVE-2026-84323 has a CVSS v3.1 base score of 5.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-84323?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84323, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-84323

Explore →

Is Your Infrastructure Affected by CVE-2026-84323?

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

Book a Demo →Browse All CVEs