CVE-2026-115411 crawlseo before 0.2.4 Server-Side Request Forgery via Crawler
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-115411?
CVE-2026-115411 is a medium-severity vulnerability in crawlseo, published on 22 Oct 2026.
Official description
crawlseo before version 0.2.4 contains a server-side request forgery vulnerability in its crawler engine where isPrivateIp() fails to block reserved IP ranges such as RFC 6598 Carrier-Grade NAT, RFC 6890, TEST-NET ranges and certain IPv6 addresses, and additionally fails to pin the validated address for the actual outbound connection, allowing a TOCTOU DNS rebinding bypass. An authenticated attacker can add a malicious domain that resolves to an internal or restricted address, trigger a crawl to reach internal services or cloud metadata endpoints like 169.254.169.254, and retrieve the fetched page's title, description, headings, status code and links through the crawl results API, enabling internal network reconnaissance.
Weakness: CWE-918
Which versions are affected by CVE-2026-115411?
How do I fix CVE-2026-115411?
No fix has been published for CVE-2026-115411 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-115411 being exploited?
There is no known exploitation of CVE-2026-115411 in the wild and no public exploit code.
Sources
Also known as GHSA-rvhf-6hhm-xg6w.