PYSEC-2026-587
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/crawl4ai/PYSEC-2026-587.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-587
- Aliases
- Published
- 2026-06-23T19:17:07.303Z
- Modified
- 2026-06-30T23:45:06.028755455Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.8, the Docker API server's SSRF protection (validatewebhookurl / validateurldestination in deploy/docker/utils.py) used an explicit IPv4/IPv6 CIDR blocklist that missed several address families. An attacker could reach internal services and cloud metadata endpoints (e.g. 169.254.169.254) despite the filter by encoding an internal IPv4 address inside an IPv6 transition form, or by using the IPv6 unspecified address. Because the Docker API is unauthenticated by default (jwt_enabled: false), no credentials are required. This vulnerability is fixed in 0.8.8.
- References
Affected packages
PyPI / crawl4ai
Package
- Name
- crawl4ai
- View open source insights on deps.dev
- Purl
- pkg:pypi/crawl4ai
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed0.8.8
Affected versions
0.*
0.3.0
0.3.1
0.3.2
0.3.3
0.3.4
0.3.5
0.3.6
0.3.7
0.3.8
0.3.71
0.3.72
0.3.73
0.3.74
0.3.731
0.3.741
0.3.742
0.3.743
0.3.744
0.3.745
0.3.746
0.4.0
0.4.1
0.4.3b1
0.4.3b2
0.4.3b3
0.4.21
0.4.22
0.4.23
0.4.24
0.4.241
0.4.242
0.4.243
0.4.244
0.4.245
0.4.246
0.4.247
0.4.248b3
0.4.248
0.5.0
0.5.0.post1
0.5.0.post2
0.5.0.post3
0.5.0.post4
0.5.0.post5
0.5.0.post6
0.5.0.post7
0.5.0.post8
0.6.0rc1
0.6.0
0.6.1
0.6.2
0.6.3
0.7.0
0.7.1
0.7.2
0.7.3
0.7.4
0.7.5
0.7.6
0.7.7
0.7.8
0.8.0
0.8.5
0.8.6
0.8.7