CVE-2026-115508CWE-1333

CVE-2026-115508

Medium · published October 23, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
22.1
In the wild
Unconfirmed
What it is

Crawl4AI 0.7.0 before 0.9.5 contains an inefficient regular expression complexity vulnerability in the Docker API server that allows authenticated API clients to supply unbounded regular expressions in /crawl request bodies. Attackers can submit catastrophic-backtracking patterns via RegexExtractionStrategy.custom, RegexChunking.patterns or JsonCss, JsonXPath and JsonLxml schema regex fields against a crafted page to freeze the entire server, including /health.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00305 · 22.1th percentile
Weakness
CWE-1333 · Inefficient Regular Expression Complexity
Published
2026-10-23T00:17Z
References (5)
https://github.com/unclecode/crawl4ai · [email protected]https://github.com/unclecode/crawl4ai/commit/8aea2006e2cdb96a185e50b20633fc323dff6429 · [email protected]https://github.com/unclecode/crawl4ai/releases/tag/v0.9.5 · [email protected]https://github.com/unclecode/crawl4ai/security/advisories/GHSA-j843-8p47-rhxp · [email protected]https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.5-redos-via-crawl-regex-fields · [email protected]
EPSS history
Timeline
  • 24 OCT 03:52Z
    EPSS moved — → 0%
    epss
  • 22 OCT 19:14Z
    Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields
    cvelistv5
  • 22 OCT 19:14Z
    Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields
    cvelistv5