PYSEC-2026-390 LiteLLM: Authentication bypass via OIDC userinfo cache key collision

Impact When JWT authentication is enabled enablejwtauth: true, the OIDC userinfo cache uses token:20 as the cache key. JWT headers produced by the same signing algorithm generate identical first 20 characters. This configuration option is not enabled by default. Most instances are not affected. A...

PYSEC-2026-468 PraisonAI Has Authentication Bypass via OAuthManager.validate_token()

Summary OAuthManager.validatetoken returns True for any token not found in its internal store, which is empty by default. Any HTTP request to the MCP server with an arbitrary Bearer token is treated as authenticated, granting full access to all registered tools and agent capabilities. Details...

PYSEC-2026-287 Authlib JWS JWK Header Injection: Signature Verification Bypass

Description Summary A JWK Header Injection vulnerability in authlib's JWS implementation allows an unauthenticated attacker to forge arbitrary JWT tokens that pass signature verification. When key=None is passed to any JWS deserialization function, the library extracts and uses the cryptographic...

PYSEC-2026-285 AstrBot is vulnerable to RCE with hard-coded JWT signing keys

Summary AstrBot uses a hard-coded JWT signing key, allowing attackers to execute arbitrary commands by installing a malicious plugin. Details AstrBot uses a hard-coded JWT signing key, which allows attackers to bypass the authentication mechanism. Once bypassed, the attacker can install a Python...

PYSEC-2026-361 joserfc has Possible Uncontrolled Resource Consumption Vulnerability Triggered by Logging Arbitrarily Large JWT Token Payloads

Summary The ExceededSizeError exception messages are embedded with non-decoded JWT token parts and may cause Python logging to record an arbitrarily large, forged JWT payload. Details In situations where a misconfigured — or entirely absent — production-grade web server sits in front of a Python...

PYSEC-2026-518 Ray's New Token Authentication is Disabled By Default

Anyscale Ray 2.52.0 contains an insecure default configuration in which token-based authentication for Ray management interfaces including the dashboard and Jobs API is disabled unless explicitly enabled by setting RAYAUTHMODE=token. In the default unauthenticated state, a remote attacker with...

PYSEC-2026-252 acryl-datahub missing JWT signature check

Missing JWT signature check GHSL-2022-078 The StatelessTokenService of the DataHub metadata service GMS does not verify the signature of JWT tokens. This allows an attacker to connect to DataHub instances as any user if Metadata Service authentication is enabled. This vulnerability occurs because...

Cobbler Improper Validation of Security Tokens

Cobbler version Verified as present in Cobbler versions 2.6.11+, but code inspection suggests at least 2.0.0+ or possibly even older versions may be vulnerable contains a Incorrect Access Control vulnerability in XMLRPC API /cobblerapi that can result in Privilege escalation, data manipulation or...

PYSEC-2026-315 Cobbler Improper Validation of Security Tokens

Cobbler version Verified as present in Cobbler versions 2.6.11+, but code inspection suggests at least 2.0.0+ or possibly even older versions may be vulnerable contains a Incorrect Access Control vulnerability in XMLRPC API /cobblerapi that can result in Privilege escalation, data manipulation or...

gnutls: gnutls: Use-after-free in gnutls_pkcs11_token_set_pin

A flaw was found in GnuTLS. The gnutlspkcs11tokensetpin function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path...

gnutls: gnutls: Information disclosure via heap overread in RSA key exchange

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure...

gnutls: gnutls: Use-after-free in gnutls_pkcs11_token_set_pin

A flaw was found in GnuTLS. The gnutlspkcs11tokensetpin function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path...

gnutls: gnutls: Use-after-free in gnutls_pkcs11_token_set_pin

A flaw was found in GnuTLS. The gnutlspkcs11tokensetpin function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path...

gnutls: gnutls: Information disclosure via heap overread in RSA key exchange

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure...

PT-2026-53733

Name of the Vulnerable Software and Affected Versions JavaScript::Minifier::XS versions prior to 0.16 Description An issue exists where memory is leaked during every call to the minify function. In the XS.xs component, the cleanup process only frees NodeSet structures and fails to free per-token...

PT-2026-53283

Name of the Vulnerable Software and Affected Versions Home Assistant versions prior to 2025.5.0 Description The iOS companion app fails to respect the SSID allowlist for internal networks. While the app typically uses the Service Set Identifier SSID—the public name of a wireless network—to...

The vulnerability of the GSS-API token processing module of the TKEY authentication mechanism’s DNS server BIND allows a perpetrator to cause a service failure.

The vulnerability of the GSS-API token processing module of the TKEY authentication mechanism’s DNS server BIND relates to the absence of a reference to an active, allocated resource. Exploiting this vulnerability can allow a malicious actor to cause service failures...

PT-2026-53747

Name of the Vulnerable Software and Affected Versions Strapi users-permissions plugin affected versions not specified Description The users-permissions plugin fails to restrict JSON Web Token JWT algorithms when the plugin::users-permissions.jwt.algorithm configuration is not explicitly set. This...

PT-2026-53495

Unauthenticated HTTP MCP Tool Execution Leaks Operator Meta Access Token | Field | Value | | ---------------- | ----- | | Repository | pipeboard-co/meta-ads-mcp | | Affected version | ≤ 1.0.101 commit 496c988 7d14226; Versions 1.0.102–1.0.105 lack git tags, so patch status is unconfirmed. | |...

Oracle Linux 9 : gnutls (ELSA-2026-50346)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50346 advisory. - Fix CVE-2026-33846 DTLS fragment reassembly, High, heap overwrite - Fix CVE-2026-42009 DTLS fragment reassembly, High, undefined behaviour - Fix...