CVE-2026-100501
Flame through 2.4.0 contains an improper restriction of excessive authentication attempts vulnerability in the POST /api/auth login endpoint that allows unauthenticated attackers to brute-force the admin password.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Flame through 2.4.0 contains an improper restriction of excessive authentication attempts vulnerability in the POST /api/auth login endpoint that allows unauthenticated attackers to brute-force the admin password. Attackers can submit unlimited password guesses without rate limiting, attempt counters, lockouts, or delays to gain full administrator access and modify application configuration.
- CVSS 4.0
- 8.3 HIGHCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.29% probability · 22th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-307
- Source
- disclosure@vulncheck.com
EPSS moved from 0.3% on 26 September 2026 to 0.3% on 26 October 2026.
References
- https://github.com/pawelmalak/flame
- https://github.com/pawelmalak/flame/blob/v2.4.0/.docker/Dockerfile#L28
- https://github.com/pawelmalak/flame/blob/v2.4.0/controllers/auth/login.js#L11-L22
- https://github.com/pawelmalak/flame/blob/v2.4.0/routes/auth.js#L7
- https://github.com/pawelmalak/flame/issues/494
- https://www.vulncheck.com/advisories/flame-through-2.4.0-brute-force-attack-via-login-endpoint
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.