CVE-2026-55501 9router: Login brute-force protection bypass via spoofed X-Forwarded-For header

9Router is an AI router & token saver. Prior to 0.4.80, the dashboard login rate limiter in src/lib/auth/loginLimiter.js derives the client identity from the attacker-controlled X-Forwarded-For HTTP header, and src/app/api/auth/login/route.js uses that spoofable value for checkLock and recordFail...

CVE-2026-55501 9router: Login brute-force protection bypass via spoofed X-Forwarded-For header

9Router is an AI router & token saver. Prior to 0.4.80, the dashboard login rate limiter in src/lib/auth/loginLimiter.js derives the client identity from the attacker-controlled X-Forwarded-For HTTP header, and src/app/api/auth/login/route.js uses that spoofable value for checkLock and recordFail...

CVE-2026-55501: Improper Restriction of Excessive Authentication Attempts

9Router is an AI router & token saver. Prior to 0.4.80, the dashboard login rate limiter in src/lib/auth/loginLimiter.js derives the client identity from the attacker-controlled X-Forwarded-For HTTP header, and src/app/api/auth/login/route.js uses that spoofable value for checkLock and recordFail...

CVE-2026-58122 Hermes WebUI < 0.51.307 Authentication Bypass via X-Forwarded-For Header Spoofing

Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to...

CVE-2026-58122 Hermes WebUI < 0.51.307 Authentication Bypass via X-Forwarded-For Header Spoofing

Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to...

CVE-2026-58122: Use of Less Trusted Source

Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to...

PT-2026-56988

Name of the Vulnerable Software and Affected Versions Hermes WebUI versions prior to 0.51.307 Description An authentication bypass exists that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints. This is achieved by supplying a spoofed...

CVE-2026-59897

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.3.3 before 4.12.27, the AWS API Gateway v1 adapter can drop a distinct repeated request header value because it de-duplicates values using a substring comparison instead of an exact match, so middleware o...

CVE-2026-59897 Hono: API Gateway v1 adapter can drop a distinct repeated request header value during de-duplication

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.3.3 before 4.12.27, the AWS API Gateway v1 adapter can drop a distinct repeated request header value because it de-duplicates values using a substring comparison instead of an exact match, so middleware o...

CVE-2026-59897: Use of Less Trusted Source

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.3.3 before 4.12.27, the AWS API Gateway v1 adapter can drop a distinct repeated request header value because it de-duplicates values using a substring comparison instead of an exact match, so middleware o...

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

While testing Litestar's RateLimitMiddleware, I discovered that rate limits can be completely bypassed by manipulating the X-Forwarded-For header. This renders IP-based rate limiting ineffective against determined attackers. The ProblemLitestar's RateLimitMiddleware uses cachekeyfromrequest to...

CVE-2026-57942

LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the getremoteaddress function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation. Attacker...

CVE-2026-57942 LibreTranslate - IP Spoofing via X-Forwarded-For Header

LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the getremoteaddress function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation. Attacker...

CVE-2026-57942 LibreTranslate - IP Spoofing via X-Forwarded-For Header

LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the getremoteaddress function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation. Attacker...

CVE-2026-57942: Use of Less Trusted Source

LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the getremoteaddress function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation. Attacker...

PT-2026-53661

LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the get remote address function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation...

GHSA-3FXJ-6JH8-HVHX chi Has an IP Spoofing Vulnerability in `middleware.RealIP`

Summary The RealIP middleware in go-chi/chi is vulnerable to IP spoofing because it blindly trusts the first leftmost element of the X-Forwarded-For HTTP header. This allows a remote attacker to bypass IP-based access control lists ACLs and rate-limiting mechanisms by providing a spoofed IP addre...

GHSA-9G5Q-2W5X-HMXF chi Middleware Vulnerable to Potential IP Spoofing via `X-Forwarded-For` Header in `Request.RemoteAddr` Resolution

Summary The vulnerability allows the Request.RemoteAddr to be spoofed when determining the request source IP via the X-Forwarded-For header. This could result in misidentification of the request source and potentially compromise access control and logging integrity. Details Currently, the RealIP...

PT-2026-71985

Name of the Vulnerable Software and Affected Versions go-chi chi versions 5.2.1 through 5.2.9 Description The RealIP middleware blindly trusts the first leftmost value of the X-Forwarded-For HTTP header. This allows a remote attacker to supply a spoofed IP address in the X-Forwarded-For header to...

PT-2026-71987

Name of the Vulnerable Software and Affected Versions go-chi/chi versions 0.9.0 through 5.2.9 Description The RealIP middleware resolves the request source IP Request.RemoteAddr by using the first IP address found in the X-Forwarded-For header without validating trusted proxies. This allows a...