CVE-2026-22817 JWT Algorithm Confusion via Unsafe Default (HS256) in Hono JWT Middleware Allows Token Forgery and Auth Bypass

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the JWT header’s alg value to influence signature verification when the selected JWK did not explicitly specify an algorith...

CVE-2026-22817

Hono JWT verification middleware (JWK/JWKS) allowed the JWT header alg to influence signature checks if the JWK didn’t specify an algorithm, enabling potential JWT algorithm confusion and, in some configurations, forged tokens. This CVE affects Hono prior to version 4.11.4. The vulnerability is f...

CVE-2026-22817 JWT Algorithm Confusion via Unsafe Default (HS256) in Hono JWT Middleware Allows Token Forgery and Auth Bypass

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the JWT header’s alg value to influence signature verification when the selected JWK did not explicitly specify an algorith...

EUVD-2026-2018

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the JWT header’s alg value to influence signature verification when the selected JWK did not explicitly specify an algorith...

CVE-2026-22818

CVE-2026-22818 concerns Hono’s JWK/JWKS JWT verification middleware. Prior to 4.11.4, if a JWK did not explicitly specify an algorithm, the middleware could derive the signature verification algorithm from the untrusted JWT header’s alg value, enabling algorithm confusion and potentially forged t...

CVE-2026-22818 JWT algorithm confusion in Hono JWK Auth Middleware when JWK lacks "alg" (untrusted header.alg fallback)

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the algorithm specified in the JWT header to influence signature verification when the selected JWK did not explicitly defi...

EUVD-2026-2017

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the algorithm specified in the JWT header to influence signature verification when the selected JWK did not explicitly defi...

CVE-2026-22818 JWT algorithm confusion in Hono JWK Auth Middleware when JWK lacks "alg" (untrusted header.alg fallback)

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the algorithm specified in the JWT header to influence signature verification when the selected JWK did not explicitly defi...

CVE-2025-68925

Summary (CVE-2025-68925): Jervis (net.gleske:jervis) is vulnerable prior to version 2.2 due to a JWT header check omission that fails to enforce the algorithm field (alg) to RS256. The issue allows potential JWT forgery or signature bypass depending on context, as described in multiple sources (e...

CVE-2025-68925 Jervis has a JWT Algorithm Confusion Vulnerability

Jervis is a library for Job DSL plugin scripts and shared Jenkins pipeline libraries. Prior to 2.2, the code doesn't validate that the JWT header specifies "alg":"RS256". This vulnerability is fixed in 2.2...

EUVD-2026-2023

Jervis is a library for Job DSL plugin scripts and shared Jenkins pipeline libraries. Prior to 2.2, the code doesn't validate that the JWT header specifies "alg":"RS256". This vulnerability is fixed in 2.2...

CVE-2025-68271 Unauthenticated Remote Code Execution in openc3-api

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.0.0 to 6.10.1, OpenC3 COSMOS contains a critical remote code execution vulnerability reachable through the JSON-RPC API. When a JSON-RPC request uses the string form of...

CVE-2025-68271

OpenC3 COSMOS (versions 5.0.0–6.10.1) has a critical remote code execution vulnerability exploitable via the JSON-RPC API. The flaw occurs when parsing attacker-controlled parameter text with String#convert_to_value; for array-like inputs, convert_to_value may execute eval(), allowing an unauthen...

CVE-2025-12548

A flaw was found in Eclipse Che che-machine-exec. This vulnerability allows unauthenticated remote arbitrary command execution and secret exfiltration SSH keys, tokens, etc. from other users' Developer Workspace containers, via an unauthenticated JSON-RPC / websocket API exposed on TCP port 3333...

GHSA-3FM2-XFQ7-7778 HAXcms Has Stored XSS Vulnerability that May Lead to Account Takeover

Summary Stored XSS Leading to Account Takeover Details The Exploit Chain: 1.Upload: The attacker uploads an .html file containing a JavaScript payload. 2.Execution: A logged-in administrator is tricked into visiting the URL of this uploaded file. 3.Token Refresh: The JavaScript payload makes a...

Jervis Has a JWT Algorithm Confusion Vulnerability

Vulnerability https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovyL244-L249 The code doesn't validate that the JWT header specifies "alg":"RS256". Impact Depending on the broader system, this could allow JWT...

GHSA-5PQ9-5MPR-JJ85 Jervis Has a JWT Algorithm Confusion Vulnerability

Vulnerability https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovyL244-L249 The code doesn't validate that the JWT header specifies "alg":"RS256". Impact Depending on the broader system, this could allow JWT...

Astra Linux – Vulnerability in cjson

In versions of cJSON 1.5.0 through 1.7.18, the decodearrayindexfrompointer function in cJSONUtils.c allows for out-of-bounds access. This enables remote attackers to bypass array bounds checking and access restricted data through malformed JSON pointer strings containing alphanumeric characters...

Astra Linux – Vulnerability in cjson

cJSON 1.7.15 may allow a denial of service through a crafted JSON document, such as "a": true, "b": null,9999999999999999999999999999999999999999999999912345678901234567...

Astra Linux – Vulnerability in cjson

In cJSON before version 1.7.18, parsestring has a heap-based buffer over-read issue, occurring through "1":1, without any trailing newline characters when cJSONParseWithLength is called...