CVE-2026-25478 Litestar has a CORS origin allowlist bypass due to unescaped regex metacharacters in allowed origins

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

CVE-2026-25478

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

CVE-2026-25478 Litestar has a CORS origin allowlist bypass due to unescaped regex metacharacters in allowed origins

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

CVE-2026-25478

Litestar (ASGI framework) contains a vulnerability in CORSConfig.allowed_origins_regex prior to 2.20.0 where a regex built from allowlist values is used with fullmatch without escaping metacharacters, allowing a malicious origin to match unexpectedly. Impact is indicated as HIGH (CVSS 3.1: AV:N/A...

CVE-2026-25478 Litestar has a CORS origin allowlist bypass due to unescaped regex metacharacters in allowed origins

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, CORSConfig.allowedoriginsregex is constructed using a regex built from configured allowlist values and used with fullmatch for validation. Because metacharacters are not escaped, a malicious origin can match...

Litestar's FileStore key canonicalization collisions allow response cache mixup/poisoning (ASCII ord + Unicode NFKD)

Summary FileStore maps cache keys to filenames using Unicode NFKD normalization and ord substitution without separators, creating key collisions. When FileStore is used as response-cache backend, an unauthenticated remote attacker can trigger cache key collisions via crafted paths, causing one UR...

GHSA-93PH-P7V4-HWH4 Litestar's AllowedHosts has a validation bypass due to unescaped regex metacharacters in configured host patterns

Summary AllowedHosts host validation can be bypassed because configured host patterns are turned into regular expressions without escaping regex metacharacters notably .. A configured allowlist entry like example.com can match exampleXcom Details In litestar.middleware.allowedhosts, allowlist...

Litestar's AllowedHosts has a validation bypass due to unescaped regex metacharacters in configured host patterns

Summary AllowedHosts host validation can be bypassed because configured host patterns are turned into regular expressions without escaping regex metacharacters notably .. A configured allowlist entry like example.com can match exampleXcom Details In litestar.middleware.allowedhosts, allowlist...

PT-2026-7136

Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to 2.20.0, in litestar.middleware.allowed hosts, allowlist entries are compiled into regex patterns in a way that allows regex metacharacters to retain special meaning e.g., . matches any character. This enables a bypass...

PT-2026-7135

Name of the Vulnerable Software and Affected Versions Litestar versions prior to 2.20.0 Description Litestar is an Asynchronous Server Gateway Interface ASGI framework. Prior to version 2.20.0, the CORS origin validation process can be bypassed. This occurs because the allowed-origins allowlist i...

Litestar 安全漏洞

Litestar is a powerful, flexible, yet stubbornly opinionated ASGI framework developed by Litestar itself. Versions of Litestar prior to 2.20.0 contained security vulnerabilities, which stemmed from the lack of escaping regular expression metacharacters, potentially allowing malicious sources to...

Litestar 安全漏洞

Litestar is a powerful, flexible, yet stubbornly opinionated ASGI framework developed by Litestar itself. Versions of Litestar prior to 2.20.0 contained security vulnerabilities. These vulnerabilities were caused by key conflicts in the caching key mapping mechanism, which could lead to cache...

PT-2026-7137

Name of the Vulnerable Software and Affected Versions Litestar versions prior to 2.20.0 Description Litestar is an Asynchronous Server Gateway Interface ASGI framework. When the FileStore is used as a response-cache backend, an unauthenticated remote attacker can trigger cache key collisions via...

Litestar 安全漏洞

Litestar is a powerful, flexible, yet stubbornly opinionated ASGI framework developed by Litestar itself. Versions of Litestar prior to 2.20.0 contained security vulnerabilities, which stemmed from improper compilation of allowlist entries, potentially allowing bypasses of hostname verification...

CVE-2026-25480

creationtimestamp| type| source ---|---|--- 2026-02-08 13:38:34+00:00| published-proof-of-concept| https://github.com/litestar-org/litestar/security/advisories/GHSA-vxqx-rh46-q2pg...

CVE-2026-25478

creationtimestamp| type| source ---|---|--- 2026-02-08 13:38:28+00:00| published-proof-of-concept| https://github.com/litestar-org/litestar/security/advisories/GHSA-2p2x-hpg8-cqp2...

CVE-2026-25479

creationtimestamp| type| source ---|---|--- 2026-02-08 13:38:24+00:00| published-proof-of-concept| https://github.com/litestar-org/litestar/security/advisories/GHSA-93ph-p7v4-hwh4...

Improper Input Validation

litestar is vulnerable to Improper Input Validation. The vulnerability is due to the framework unconditionally trusting the X-Forwarded-For header when generating rate-limit cache keys, which allows an attacker to spoof arbitrary IPs and rotate through them to evade rate-limiting...

Linux Distros Unpatched Vulnerability : CVE-2025-59152

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Litestar is an Asynchronous Server Gateway Interface ASGI framework. In version 2.17.0, rate limits can be completely bypassed by manipulating the X-Forwarded-F...

CVE-2025-59152

Litestar is an Asynchronous Server Gateway Interface ASGI framework. In version 2.17.0, rate limits can be completely bypassed by manipulating the X-Forwarded-For header. This renders IP-based rate limiting ineffective against determined attackers. Litestar's RateLimitMiddleware uses...