CVE-2026-71205 changedetection.io - No Rate Limiting on /login Enables Unlimited Password Brute-Force
Attackers can perform unlimited password brute-force attacks on changedetection.io due to missing rate limiting on the login route.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71205?
CVE-2026-71205 is a medium-severity missing authorization vulnerability in dgtlmoon changedetection.io, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
changedetection.io's /login route checks the submitted password against a single PBKDF2-HMAC-SHA256 hash with no per-IP or per-session rate limiting, failed-attempt counter, or lockout (no rate-limiting library is present in requirements.txt).
Weakness: CWE-307
Which versions are affected by CVE-2026-71205?
How do I fix CVE-2026-71205?
No fix has been published for CVE-2026-71205 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-71205 being exploited?
There is no known exploitation of CVE-2026-71205 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-vwqf-jx9p-3vgp.