PT-2026-41777

JWT.decodetoken, '', true, algorithm: 'HS256' accepts an attacker-forged token. OpenSSL::HMAC.digest'SHA256', '', payload returns a valid digest under an empty key, and no raise InvalidKeyError if key.empty? precondition exists in the HMAC algorithm. JWT.decodetoken, "", true, algorithm: 'HS256' ...

Use Of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Cloudreve is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator PRNG. The vulnerability is due to the generation of security-sensitive secrets using math/rand seeded with predictable timestamps, which allows an attacker to recover the secret key, forge JWTs, and gain...

UBUNTU-CVE-2026-44699

LibJWT is a C JSON Web Token Library. From 3.0.0 to 3.3.2, libjwt accepts an RSA JWK that does not contain an alg parameter as the verification key for an HS256/HS384/HS512 token. In the OpenSSL backend, this causes HMAC verification to run with a zero-length key, so an attacker can forge a valid...

Inadequate Encryption Strength

Overview Affected versions of this package are vulnerable to Inadequate Encryption Strength due to insufficient enforcement of length and entropy requirements for the JWTSECRET configuration value. An attacker can gain unauthorized access to user accounts by forging authentication tokens using we...

CVE-2026-44523 Note Mark: JWT Secret Weakness allows Full Account Takeover via token forgery

Note Mark is an open-source note-taking application. Prior to 0.19.4, no minimum length or entropy is enforced on the JWTSECRET configuration value. The application accepts any base64-decodable secret regardless of size, including secrets as short as 1 byte. This vulnerability is fixed in 0.19.4...

CVE-2026-44523

CVE-2026-44523 affects Note Mark, with all versions before 0.19.4 vulnerable to a JWT secret weakness. The root cause is that the JWT secret is not validated for minimum length or entropy; the application accepts any base64-decodable secret, even as short as 1 byte. In backend/config/utils.go, Ba...

CVE-2026-44523 Note Mark: JWT Secret Weakness allows Full Account Takeover via token forgery

Note Mark is an open-source note-taking application. Prior to 0.19.4, no minimum length or entropy is enforced on the JWTSECRET configuration value. The application accepts any base64-decodable secret regardless of size, including secrets as short as 1 byte. This vulnerability is fixed in 0.19.4...

CVE-2026-44351

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.2.4, a critical authentication-bypass vulnerability in fast-jwt's async key-resolver flow allows any unauthenticated attacker to forge arbitrary JWTs that are accepted as authentic. When the application's key resolver returns an...

CVE-2026-44351 fast-jwt: Empty HMAC secret accepted via async key resolver - JWT auth bypass

fast-jwt provides fast JSON Web Token JWT implementation. Prior to 6.2.4, a critical authentication-bypass vulnerability in fast-jwt's async key-resolver flow allows any unauthenticated attacker to forge arbitrary JWTs that are accepted as authentic. When the application's key resolver returns an...

fast-jwt 授权问题漏洞

fast-jwt is a JSON Web Token implementation open-sourced by Nearform. Versions of fast-jwt prior to 6.2.4 contained an authorization vulnerability. This vulnerability stemmed from a critical authentication bypass in the asynchronous key resolution process, allowing unauthenticated attackers to...

GHSA-3P28-73Q7-45XP free5GC's NEF 3gpp-traffic-influence API is unauthenticated; missing or forged bearer tokens can create, read, patch, and delete subscriptions

Summary free5GC's NEF mounts the 3gpp-traffic-influence API without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can create, read, patch, and delete traffic-influence subscriptions either with no Authorization header at all, or with a forged bearer...

CVE-2026-42176

Scoold is a Q&A and a knowledge sharing platform for teams. Prior to version 1.67.0, Scoold allows the admins configuration value to be modified through /api/config/set/admins with a forged Bearer token that is accepted as an admin API token. Once that setting is changed, the target email address...

Note Mark has a JWT Secret Weakness that allows Full Account Takeover via Token Forgery

Summary No minimum length or entropy is enforced on the JWTSECRET configuration value. The application accepts any base64-decodable secret regardless of size, including secrets as short as 1 byte. HS256 secrets below 32 bytes are brute-forceable offline, allowing attackers to recover the signing...

Exploit for CVE-2026-29000

HackTheBox — Principal Difficulty: Medium OS: Linux...

CVE-2026-42223

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.8, the GetSettings API handler api/settings/settings.go:24-65 serializes all settings structs to JSON and returns them to authenticated users. Many sensitive fields are tagged with protected:"true" - however, this tag...

CVE-2026-38651

Authentication Bypass vulnerability exists in Netmaker versions prior to 1.5.0. The VerifyHostToken function in logic/jwts.go fails to validate the JWT signature when verifying host tokens. An attacker can forge a JWT signed with any arbitrary key and use it to impersonate any host in the network...

GHSA-QPV2-RWC8-C993 Netmaker does not verify JWT signatures for host tokens

Netmaker by Gravitl is an open-source WireGuard-based networking platform for creating and managing virtual overlay networks. The VerifyHostToken function in logic/jwts.go does not validate the JWT signature when verifying host tokens. After calling jwt.ParseWithClaims, the function only checks...

CVE-2026-38651

CVE-2026-38651 concerns Netmaker (versions prior to 1.5.0). The root cause is a JWT verification flaw in VerifyHostToken (logic/jwts.go) that fails to validate signatures, enabling an attacker to forge a host token with any key to impersonate a host and access sensitive information. The CVSS 3.1 ...

PT-2026-35745

Authentication Bypass vulnerability exists in Netmaker versions prior to 1.5.0. The VerifyHostToken function in logic/jwts.go fails to validate the JWT signature when verifying host tokens. An attacker can forge a JWT signed with any arbitrary key and use it to impersonate any host in the network...

CVE-2026-40514

SmarterTools SmarterMail builds prior to 9610 contain a cryptographic weakness in the file and email sharing endpoints that use DES-CBC encryption with keys and initialization vectors derived from System.Random seeded with insufficient entropy, reducing the seed space to approximately 19,000...