CVE-2024-1892
Description
A Regular Expression Denial of Service (ReDoS) vulnerability exists in the XMLFeedSpider class of the scrapy/scrapy project, specifically in the parsing of XML content. By crafting malicious XML content that exploits inefficient regular expression complexity used in the parsing process, an attacker can cause a denial-of-service (DoS) condition. This vulnerability allows for the system to hang and consume significant resources, potentially rendering services that utilize Scrapy for XML processing unresponsive.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.11.1-1 |
| sid | Fixed | 2.11.1-1 |
| forky | Fixed | 2.11.1-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
References
- https://github.com/scrapy/scrapy/security/advisories/GHSA-cc65-xxvf-f7r9
- https://github.com/scrapy/scrapy/commit/479619b340f197a8f24c5db45bc068fb8755f2c5
- https://github.com/scrapy/scrapy/commit/73e7c0ed011a0565a1584b8052ec757b54e5270b
- https://docs.scrapy.org/en/latest/news.html#scrapy-1-8-4-2024-02-14
- https://docs.scrapy.org/en/latest/news.html#scrapy-2-11-1-2024-02-14
- https://github.com/pypa/advisory-database/tree/main/vulns/scrapy/PYSEC-2024-162.yaml
- https://github.com/scrapy/scrapy
- https://huntr.com/bounties/271f94f2-1e05-4616-ac43-41752389e26b
- https://security-tracker.debian.org/tracker/CVE-2024-1892
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.