CVE-2026-100379

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (23rd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 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: 0.3%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Wikipedia Android App allows Accessing/Intercepting/Modifying HTTP Cookies.

This issue affects Wikipedia Android App: main.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
23rd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

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 25, 2026

Last Modified

September 28, 2026

Advisory Details (2)

Auto-updated Sep 25, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr.
github_pr Patch Available

Harden authority checking when buiding cookie list.

Patch available: wikimedia/apps-android-wikipedia latest (PR #6768 merged 2026-08-04)

https://github.com/wikimedia/apps-android-wikipedia/pull/6768
generic🟡 PoC Available

⚓ T433832 CVE-2026-100379: Cross-request disclosure of CentralAuth cookies in Wikipedia Android App

https://phabricator.wikimedia.org/T433832

Vendor Advisories for CVE-2026-100379(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 30× 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. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 21:20 UTCGHSA enrichment
  3. 2026-10-03 20:44 UTCEG score recompute
  4. 2026-10-03 20:44 UTCGHSA enrichment
  5. 2026-10-03 14:25 UTCEPSS rescore
  6. 2026-10-02 20:04 UTCEG score recompute
  7. 2026-10-02 20:04 UTCGHSA enrichment
  8. 2026-10-01 19:49 UTCEPSS rescore
  9. 2026-10-01 19:26 UTCGHSA enrichment
  10. 2026-09-30 18:50 UTCEG score recompute
  11. 2026-09-30 18:50 UTCGHSA enrichment
  12. 2026-09-30 15:02 UTCEPSS rescore
  13. 2026-09-29 18:14 UTCEG score recompute
  14. 2026-09-29 18:14 UTCGHSA enrichment
  15. 2026-09-29 15:20 UTCEPSS rescore
  16. 2026-09-28 17:01 UTCEG score recompute
  17. 2026-09-28 17:01 UTCGHSA enrichment
  18. 2026-09-28 13:50 UTCEPSS rescore
  19. 2026-09-28 00:03 UTCEG score recompute
  20. 2026-09-28 00:03 UTCGHSA enrichment
  21. 2026-09-26 23:27 UTCEG score recompute
  22. 2026-09-26 23:27 UTCGHSA enrichment
  23. 2026-09-26 22:54 UTCEG score recompute
  24. 2026-09-26 22:54 UTCGHSA enrichment
  25. 2026-09-26 21:54 UTCEG score recompute
Show 5 more
  1. 2026-09-26 21:54 UTCGHSA enrichment
  2. 2026-09-26 15:58 UTCEPSS rescore
  3. 2026-09-25 21:19 UTCEG score recompute
  4. 2026-09-25 20:54 UTCEG score recompute
  5. 2026-09-25 20:54 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100379?
CVE-2026-100379 is a medium vulnerability published on September 25, 2026. Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Wikipedia Android App allows Accessing/Intercepting/Modifying HTTP Cookies. This issue affects Wikipedia Android App: main.
When was CVE-2026-100379 disclosed?
CVE-2026-100379 was first published on September 25, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100379 actively exploited?
CVE-2026-100379 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100379?
CVE-2026-100379 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100379?
A fix for CVE-2026-100379 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100379 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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