CVE-2025-24369
CVE-2025-24369 is a low-severity vulnerability with a CVSS 4.0 base score of 2.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-807.
Key facts
- Severity: Low (CVSS 4.0 base score 2.3)
- EPSS exploit prediction: 0% (32nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-3683
- Weakness: CWE-807
- Published:
- Last modified:
Description
Anubis is a tool that allows administrators to protect bots against AI scrapers through bot-checking heuristics and a proof-of-work challenge to discourage scraping from multiple IP addresses. Anubis allows attackers to bypass the bot protection by requesting a challenge, formulates any nonce (such as 42069), and then passes the challenge with difficulty zero. Commit e09d0226a628f04b1d80fd83bee777894a45cd02 fixes this behavior by not using a client-specified difficulty value.
Frequently asked questions
- What is CVE-2025-24369?
- Anubis is a tool that allows administrators to protect bots against AI scrapers through bot-checking heuristics and a proof-of-work challenge to discourage scraping from multiple IP addresses. Anubis allows attackers to bypass the bot protection by requesting a challenge, formulates any nonce (such as 42069), and then passes the challenge with difficulty zero. Commit e09d0226a628f04b1d80fd83bee777894a45cd02 fixes this behavior by not using a client-specified difficulty value.
- How severe is CVE-2025-24369?
- CVE-2025-24369 has a CVSS 4.0 base score of 2.3, rated low severity.
- Is CVE-2025-24369 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-24369?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-24369 have an EU (EUVD) identifier?
- Yes. CVE-2025-24369 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-3683.
- When was CVE-2025-24369 published?
- CVE-2025-24369 was published on 2025-01-27 and last updated on 2026-06-17.
References
- https://github.com/Xe/x/commit/7bd7b209f4f1b897de85ec8973458dc8be606a8b
- https://github.com/Xe/x/commit/e09d0226a628f04b1d80fd83bee777894a45cd02
- https://github.com/Xe/x/security/advisories/GHSA-56w8-8ppj-2p4f
- https://xeiaso.net/notes/2025/GHSA-56w8-8ppj-2p4f
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