PatchSiren cyber security CVE debrief
CVE-2026-100502 pawelmalak CVE debrief
CVE-2026-100502 debrief based on insufficient session expiration in Flame 2.4.0 login endpoint. The vulnerability allows attackers with former admin access to obtain tokens with arbitrary lifespans, potentially retaining full control of the dashboard. This issue arises from the login endpoint's insufficient session expiration, which enables the creation of near-permanent administrator tokens that survive password changes. These tokens are verified only against a static JWT secret that is never rotated.
- Vendor
- pawelmalak
- Product
- flame
- CVSS
- MEDIUM 5.9
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-09-25
- Original CVE updated
- 2026-09-25
- Advisory published
- 2026-09-25
- Advisory updated
- 2026-09-25
Who should care
Defenders and administrators of Flame 2.4.0 should assess exposure and prioritize mitigation. They should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Additionally, they should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed and review compensating controls for exposed systems while remediation is scheduled and verified.
Why it matters
Insufficient session expiration in Flame 2.4.0 login endpoint allows attackers with former admin access to obtain tokens with arbitrary lifespans, potentially retaining full control of the dashboard.
- Attackers can mint near-permanent administrator tokens
- Tokens are verified only against a static JWT secret
- Tokens survive password changes
Technical summary
Flame 2.4.0 login endpoint has insufficient session expiration, allowing attackers with former admin access to obtain tokens with arbitrary lifespans. This vulnerability enables the creation of near-permanent administrator tokens that survive password changes, as tokens are verified only against a static JWT secret that is never rotated. Defenders should prioritize verifying and mitigating insufficient session expiration in Flame 2.4.0 login endpoint to prevent potential attacks that could retain full control of the dashboard.
Defensive priority
Defenders should prioritize verifying and mitigating insufficient session expiration in Flame 2.4.0.
Recommended defensive actions
- Verify and mitigate insufficient session expiration in Flame 2.4.0 login endpoint
- Rotate JWT secret and restrict token duration
- Monitor for suspicious token activity
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
Evidence from Vulncheck and NVD indicates insufficient session expiration in Flame 2.4.0 login endpoint. The CVE record and NVD detail page provide information on this vulnerability, but additional verification is needed to confirm affected scope and severity. Defenders should verify and mitigate insufficient session expiration in Flame 2.4.0 login endpoint.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-100502 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-100502
CVE Program - Official CVE Program record with source-provided CVE metadata.
-
CVE-2026-100502 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-100502
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Source reference
Unverified legacy reference
URL: https://github.com/pawelmalak/flame
-
Source reference
Unverified legacy reference
URL: https://github.com/pawelmalak/flame/blob/v2.4.0/controllers/auth/login.js
-
Source reference
Unverified legacy reference
URL: https://github.com/pawelmalak/flame/blob/v2.4.0/utils/init/initSecret.js
-
Source reference
Unverified legacy reference
URL: https://github.com/pawelmalak/flame/blob/v2.4.0/utils/signToken.js
-
Source reference
Unverified legacy reference
URL: https://github.com/pawelmalak/flame/issues/494
-
Source reference
Unverified legacy reference
URL: https://www.vulncheck.com/advisories/flame-through-2.4.0-admin-token-insufficient-session-expiration
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.