CVE-2026-71205: changedetection.io - No Rate Limiting on /login Enables Unlimited Password Brute-Force
Deferred
Published 05-08-2026Last modified 10-08-2026
Vulnerability summary
CVE-2026-71205 is a medium (CVSS 6.5) vulnerability in dgtlmoon changedetection.io. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.5% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.27%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 05-08-2026PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
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).
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NSourcesAll 2 agree
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
18%
Versus all other CVEs
30-day change
Increase +0.06 pp
From 0.21% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Dgtlmoon1 product
- changedetection.io0.55.7
1 vendor · 1 product
References
1 links- github.com/dgtlmoon/changedetection.ioThird Party Advisory