CVE-2026-100502

MEDIUMPre-NVD 5.05.0—
EchelonGraph scoreHIGH confidence

Score 5.0 from GitHub Security Advisory published 2026-09-26. A secondary CVSS source baseline 5.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.0Exploit: Elevated riskExposed services: Not assessed

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

Flame through 2.4.0 contains an insufficient session expiration vulnerability in the login endpoint that allows attackers with former admin access to obtain tokens with arbitrary lifespans by supplying unvalidated duration parameters. Attackers can mint near-permanent administrator tokens that survive password changes, retaining full control of the dashboard since tokens are verified only against a static JWT secret that is never rotated.

CVSS v3
5.0
EG Score
5.0MEDIUMhigh confidence
EG Risk
39
EG Risk 39/100CISA 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
Severity50% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
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
19th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

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 public PoC (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 30, 2026

Advisory Details (6)

Auto-updated Sep 25, 2026
No patch confirmed yet.
generic

Flame through 2.4.0 Admin Token Insufficient Session Expiration | Advisories | VulnCheck

https://www.vulncheck.com/advisories/flame-through-2.4.0-admin-token-insufficient-session-expiration
generic

GitHub - pawelmalak/flame: Flame is self-hosted startpage for your server. Easily manage your apps and bookmarks with built-in editors. · GitHub

https://github.com/pawelmalak/flame
generic

flame/utils/init/initSecret.js at v2.4.0 · pawelmalak/flame · GitHub

https://github.com/pawelmalak/flame/blob/v2.4.0/utils/init/initSecret.js#L8-L25
generic

flame/utils/signToken.js at v2.4.0 · pawelmalak/flame · GitHub

https://github.com/pawelmalak/flame/blob/v2.4.0/utils/signToken.js#L4
generic

flame/controllers/auth/login.js at v2.4.0 · pawelmalak/flame · GitHub

https://github.com/pawelmalak/flame/blob/v2.4.0/controllers/auth/login.js#L9-L17
generic

Security Report: Multiple vulnerabilities in Flame · Issue #494 · pawelmalak/flame · GitHub

https://github.com/pawelmalak/flame/issues/494

Vendor Advisories for CVE-2026-100502(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 21× in last 7d / 29× 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 02:14 UTCEG score recompute
  2. 2026-10-05 02:14 UTCGHSA enrichment
  3. 2026-10-04 23:21 UTCEPSS rescore
  4. 2026-10-03 23:49 UTCEG score recompute
  5. 2026-10-03 23:49 UTCGHSA enrichment
  6. 2026-10-03 14:25 UTCEPSS rescore
  7. 2026-10-02 21:28 UTCEG score recompute
  8. 2026-10-02 21:28 UTCGHSA enrichment
  9. 2026-10-01 19:49 UTCEPSS rescore
  10. 2026-10-01 19:07 UTCGHSA enrichment
  11. 2026-09-30 16:45 UTCEG score recompute
  12. 2026-09-30 16:45 UTCGHSA enrichment
  13. 2026-09-30 15:02 UTCEPSS rescore
  14. 2026-09-30 01:30 UTCEG score recompute
  15. 2026-09-30 01:30 UTCGHSA enrichment
  16. 2026-09-30 00:39 UTCEG score recompute
  17. 2026-09-30 00:38 UTCGHSA enrichment
  18. 2026-09-29 15:20 UTCEPSS rescore
  19. 2026-09-29 05:24 UTCEG score recompute
  20. 2026-09-29 05:24 UTCGHSA enrichment
  21. 2026-09-28 13:50 UTCEPSS rescore
  22. 2026-09-28 03:03 UTCEG score recompute
  23. 2026-09-28 03:03 UTCGHSA enrichment
  24. 2026-09-27 00:42 UTCEG score recompute
  25. 2026-09-27 00:42 UTCGHSA enrichment
Show 4 more
  1. 2026-09-26 15:58 UTCEPSS rescore
  2. 2026-09-25 22:22 UTCEG score recompute
  3. 2026-09-25 22:09 UTCEG score recompute
  4. 2026-09-25 22:09 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100502?
CVE-2026-100502 is a medium vulnerability published on September 25, 2026. Flame through 2.4.0 contains an insufficient session expiration vulnerability in the login endpoint that allows attackers with former admin access to obtain tokens with arbitrary lifespans by supplying unvalidated duration parameters. Attackers can mint near-permanent administrator tokens that…
When was CVE-2026-100502 disclosed?
CVE-2026-100502 was first published on September 25, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100502 actively exploited?
CVE-2026-100502 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100502?
CVE-2026-100502 has a CVSS base score of 5.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100502?
No fix for CVE-2026-100502 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-2026-100502 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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