CVE-2026-100502

MEDIUMPre-NVD 5.05.0
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
Elevated

Also known asEUVD-2026-87368 (ENISA EUVD) · GHSA-h3fx-87pr-c7fx (GitHub Security Advisories)Source: ENISA EUVD

5.0EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.0Exploit: No code on recordExposed services: Not assessed

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

The CVE record's CNA (VulnCheck) lists pawelmalak flame versions up to and including 2.4.0 as affected. No release containing a fix is confirmed on record.

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
5.0MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity50% × 45%
Impact severity (EG Severity): CVSS 5.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.0): severity, escalated by confirmed exploitation. This CVE's 5.0 is its impact severity (EG Severity), not escalated.

EG Severity
5.0 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-25). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 25, 2026

Last Modified

September 30, 2026

Advisory Details (6)

Auto-updated Sep 25, 2026
No fix on record yet.
Web page

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
Web page

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
Web page

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
Web page

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

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

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
Web page

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 7× in last 7d / 55× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  2. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  3. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  4. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  5. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  6. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  7. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  8. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  9. 2026-10-26 00:36 UTCEG score recompute
  10. 2026-10-26 00:36 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  11. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  12. 2026-10-25 15:58 UTCEG score recompute
  13. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  14. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  15. 2026-10-23 09:54 UTCEG score recompute
  16. 2026-10-23 09:53 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  17. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  18. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  19. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  21. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  22. 2026-10-18 05:11 UTCEG score recompute
  23. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  24. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  25. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
Show 54 more
  1. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  2. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  3. 2026-10-12 16:42 UTCEG score recompute
  4. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  5. 2026-10-11 20:17 UTCEG score recompute
  6. 2026-10-11 17:04 UTCEG score recompute
  7. 2026-10-11 17:04 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  8. 2026-10-11 15:02 UTCEG score recompute
  9. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  10. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-10-10 14:42 UTCEG score recompute
  12. 2026-10-10 14:42 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  13. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-10-09 12:19 UTCEG score recompute
  15. 2026-10-09 12:19 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  16. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  17. 2026-10-08 09:20 UTCEG score recompute
  18. 2026-10-08 09:20 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  19. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-10-07 06:59 UTCEG score recompute
  21. 2026-10-07 06:59 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  22. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-10-06 04:38 UTCEG score recompute
  24. 2026-10-06 04:38 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  25. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  26. 2026-10-05 02:14 UTCEG score recompute
  27. 2026-10-05 02:14 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  28. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  29. 2026-10-03 23:49 UTCEG score recompute
  30. 2026-10-03 23:49 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  31. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  32. 2026-10-02 21:28 UTCEG score recompute
  33. 2026-10-02 21:28 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  34. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  35. 2026-10-01 19:07 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  36. 2026-09-30 16:45 UTCEG score recompute
  37. 2026-09-30 16:45 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  38. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  39. 2026-09-30 01:30 UTCEG score recompute
  40. 2026-09-30 01:30 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  41. 2026-09-30 00:39 UTCEG score recompute
  42. 2026-09-30 00:38 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  43. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  44. 2026-09-29 05:24 UTCEG score recompute
  45. 2026-09-29 05:24 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  46. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  47. 2026-09-28 03:03 UTCEG score recompute
  48. 2026-09-28 03:03 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  49. 2026-09-27 00:42 UTCEG score recompute
  50. 2026-09-27 00:42 UTCGHSA enrichmentGHSA-h3fx-87pr-c7fx · GitHub CVSS 5.0
  51. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  52. 2026-09-25 22:22 UTCEG score recompute
  53. 2026-09-25 22:09 UTCEG score recomputeFirst assessed: 5.0 MEDIUM
  54. 2026-09-25 22:09 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-100502?
CVE-2026-100502 is a medium-severity vulnerability; its CVE record was 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 made public?
CVE-2026-100502 was made public on August 17, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 25, 2026. EchelonGraph's copy of the record carries a last-modified date of September 30, 2026; the record at its source may have been updated since.
Is CVE-2026-100502 actively exploited?
CVE-2026-100502 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th 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 CVE record's CNA (VulnCheck) lists pawelmalak flame versions up to and including 2.4.0 as affected. No release containing a fix is confirmed on record. 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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