Litestar X-Forwarded-For Header Spoofing Vulnerability Enables Rate Limit Evasion

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0049, the 41st percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 6 Oct 2025. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-hm36-ffrh-c77c
• OSV: GHSA-hm36-ffrh-c77c
• github.com/litestar-org/litestar/security/advisories/GHSA-hm36-ffrh-c77c
• nvd.nist.gov/vuln/detail/CVE-2025-59152
• github.com/litestar-org/litestar/commit/42a89e043e50b515f8548a93954fe143f63cf9fb
• github.com/litestar-org/litestar
• github.com/litestar-org/litestar/blob/26f20ac6c52de2b4bf81161f7560c8bb4af6f382/litestar/middleware/rate_limit.py#L127

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.