Rocky Linux 10.1 [CIQ] Security Update: fence-agents-aliyun / fence-agents-all / fence-agents-amt-ws / etc Multiple Vulnerabilities (crlsa-2026_13916)

The Rocky Linux 10.1 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202613916 advisory. pyjwt: PyJWT accepts unknown crit header extensions RFC 7515 ?4.1.11 MUST violation CVE-2026-32597 pyasn1: pyasn1 Vulnerable to Denial of Service via...

Linux Distros Unpatched Vulnerability : CVE-2026-103001

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PyJWT is a Python implementation of JSON Web Token standards. From 2.11.0 through 2.13.0, PyJWT's PyJWT.mergeoptions method can modify a caller-supplied mutable...

Rocky Linux 10.2 [CIQ] Security Update: fence-agents-aliyun / fence-agents-all / fence-agents-amt-ws / etc Multiple Vulnerabilities (crlsa-2026_19138)

The Rocky Linux 10.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202619138 advisory. pyjwt: PyJWT accepts unknown crit header extensions RFC 7515 ?4.1.11 MUST violation CVE-2026-32597 pyasn1: pyasn1 Vulnerable to Denial of Service via...

Rocky Linux 9 [CIQ] Security Update: fence-agents-aliyun / fence-agents-all / fence-agents-amt-ws / etc (crlsa-2026_26206)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202626206 advisory. python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens CVE-2026-48526 Tenable has extracted the preceding description block directly from the CIQ...

GHSA-GVP8-978C-RX2Q PyJWT.decode() reintroduces options-dict mutation, enabling silent claim-verification bypass on dict reuse

Summary PyJWT.decode/decodecomplete mutates a caller-supplied options dict in place whenever verifysignature is falsy, adding verifyexp/verifynbf/verifyiat/verifyaud/verifyiss/verifysub/verifyjti keys directly onto that object. If application code reuses the same options dict across calls a confi...

EUVD-2026-90388

PyJWT.decode reintroduces options-dict mutation, enabling silent claim-verification bypass on dict reuse...

PyJWT.decode() reintroduces options-dict mutation, enabling silent claim-verification bypass on dict reuse

Summary PyJWT.decode/decodecomplete mutates a caller-supplied options dict in place whenever verifysignature is falsy, adding verifyexp/verifynbf/verifyiat/verifyaud/verifyiss/verifysub/verifyjti keys directly onto that object. If application code reuses the same options dict across calls a confi...

CVE-2026-103001

A flaw was found in pyjwt. This vulnerability allows a remote attacker to bypass token validation checks when an application reuses an options configuration across multiple token decoding requests. Because the library unintentionally modifies the caller's shared configuration dictionary when...

Modification of Assumed-Immutable Data (MAID)

Overview PyJWT is a Python implementation of RFC 7519. Affected versions of this package are vulnerable to Modification of Assumed-Immutable Data MAID in the mergeoptions method in jwt/apijwt.py, which writes verifyexp, verifynbf, verifyiat, verifyaud, verifyiss, verifysub, and verifyjti directly...

DEBIAN-CVE-2026-103001

PyJWT is a Python implementation of JSON Web Token standards. From 2.11.0 through 2.13.0, PyJWT's PyJWT.mergeoptions method can modify a caller-supplied mutable options mapping when verifysignature is false. If an application reuses that same mapping for a later decode or decodecomplete call and...

CVE-2026-103001

PyJWT is a Python implementation of JSON Web Token standards. From 2.11.0 through 2.13.0, PyJWT's PyJWT.mergeoptions method can modify a caller-supplied mutable options mapping when verifysignature is false. If an application reuses that same mapping for a later decode or decodecomplete call and...

CVE-2026-103001

The PyJWT library (versions 2.11.0 through 2.13.0 ) contains a vulnerability where the PyJWT._merge_options() method modifies a caller-supplied mutable options mapping when verify_signature is set to false . If an application reuses this same mapping for subsequent decode() or decode_complete() c...

CVE-2026-103001 PyJWT.decode() reintroduces options-dict mutation, enabling silent claim-verification bypass on dict reuse

PyJWT is a Python implementation of JSON Web Token standards. From 2.11.0 through 2.13.0, PyJWT's PyJWT.mergeoptions method can modify a caller-supplied mutable options mapping when verifysignature is false. If an application reuses that same mapping for a later decode or decodecomplete call and...

CVE-2026-103001

PyJWT is a Python implementation of JSON Web Token standards. From 2.11.0 through 2.13.0, PyJWT's PyJWT.mergeoptions method can modify a caller-supplied mutable options mapping when verifysignature is false. If an application reuses that same mapping for a later decode or decodecomplete call and...

CVE-2026-103001 PyJWT.decode() reintroduces options-dict mutation, enabling silent claim-verification bypass on dict reuse

PyJWT is a Python implementation of JSON Web Token standards. From 2.11.0 through 2.13.0, PyJWT's PyJWT.mergeoptions method can modify a caller-supplied mutable options mapping when verifysignature is false. If an application reuses that same mapping for a later decode or decodecomplete call and...

EUVD-2026-88479

PyJWT: Unauthenticated RecursionError DoS in pre-verification payload parse PyJWKClient.getsigningkeyfromjwt / verifysignature=False...

PyJWT: Unauthenticated RecursionError DoS in pre-verification payload parse (PyJWKClient.get_signing_key_from_jwt / verify_signature=False)

Summary PyJWKClient.getsigningkeyfromjwttoken — the first step of the JWKS verification flow documented in docs/usage.rst — must decode a token's payload before its signature can be checked, via jwt.apijwt.decodecompletetoken, options="verifysignature": False. That call parses the payload with...

GHSA-42VR-XJ54-VC7V PyJWT: Unauthenticated RecursionError DoS in pre-verification payload parse (PyJWKClient.get_signing_key_from_jwt / verify_signature=False)

Summary PyJWKClient.getsigningkeyfromjwttoken — the first step of the JWKS verification flow documented in docs/usage.rst — must decode a token's payload before its signature can be checked, via jwt.apijwt.decodecompletetoken, options="verifysignature": False. That call parses the payload with...

GHSA-JWRC-G2Q2-PQ5P PyJWT: ReDoS vulnerability when calling the `is_pem_format` function.

Summary There is a Re-DoS vulnerability in the ispemformat function which results in a intesive CPU usage if an attacker is been able to provide a custom certificate. Details The problem is that the lazy quantifier .+? will always first try to match as little as possible until it finds a ---- END...

PyJWT: ReDoS vulnerability when calling the `is_pem_format` function.

Summary There is a Re-DoS vulnerability in the ispemformat function which results in a intesive CPU usage if an attacker is been able to provide a custom certificate. Details The problem is that the lazy quantifier .+? will always first try to match as little as possible until it finds a ---- END...