CVE-2026-63088 (GCVE-0-2026-63088)
Vulnerability from cvelistv5 – Published: 2026-07-16 16:40 – Updated: 2026-11-08 14:07 X_Open Source
VLAI
EPSS
VEX
Title
stoatchat < 0.14.0 SSRF via DNS-based IP Blocklist Bypass
Summary
stoatchat before 0.14.0 contains a server-side request forgery (SSRF) vulnerability that allows unauthenticated network-accessible attackers to bypass the DNS-based IP blocklist by exploiting incomplete address validation in the url_is_blacklisted function, which inspects only the first resolved address while the underlying HTTP client iterates all cached addresses.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 18:00 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/stoatchat/stoatchat/security/a… | vendor-advisory |
| https://github.com/stoatchat/stoatchat/releases/t… | release-notespatch |
| https://github.com/stoatchat/stoatchat/security/a… | |
| https://www.vulncheck.com/advisories/stoatchat-ss… | third-party-advisory |
Impacted products
Date Public
2026-07-13 00:00
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.