CVE-2025-24369

Anubis has a bot protection bypass when a sophisticated attacker asks to pass a challenge of difficulty 0

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.

Category

2.3
CVSS
Severity: Low
CVSS 4.0 •
EPSS 0.09%
Affected: Xe x
Published at:
Updated at:

References

Link Tags
https://github.com/Xe/x/security/advisories/GHSA-56w8-8ppj-2p4f
https://github.com/Xe/x/commit/7bd7b209f4f1b897de85ec8973458dc8be606a8b
https://github.com/Xe/x/commit/e09d0226a628f04b1d80fd83bee777894a45cd02
https://xeiaso.net/notes/2025/GHSA-56w8-8ppj-2p4f

Frequently Asked Questions

What is the severity of CVE-2025-24369?
CVE-2025-24369 has been scored as a low severity vulnerability.
How to fix CVE-2025-24369?
To fix CVE-2025-24369, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-24369 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-24369 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-24369?
CVE-2025-24369 affects Xe x.
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