CVE-2026-101917VulnerabilityPublished 9 Oct 2026Updated 10 Nov 2026

SUSE · Security update for python-PyJWT

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-101917· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium : upgrade SUSE pyjwt to 2.14.0 when convenient.

Data as of 10 Nov 2026, 20:48 UTC

CVSS 3.1 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 2.14.0

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 28 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade pyjwt to 2.14.0.

Affected software

Product	Affected	Fixed in
jpadillapyjwt	Affected <2.14.0	Fixed in 2.14.0
PyPIpyjwt`pkg:pypi/pyjwt`Other threats	Affected <2.14.0	Fixed in 2.14.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update has been released to address these vulnerabilities. Users of python-PyJWT should apply the update promptly to mitigate these risks. No additional mitigation steps are indicated beyond applying the official fix.

Description

This security update for python-PyJWT addresses multiple vulnerabilities that could lead to amplification of outbound requests, HTTP 500 errors from unauthenticated requests, disclosure or substitution of verification keys, forgery of authenticated HMAC tokens, failure in token revocation checks, excessive CPU consumption, parsing failures of JWK sets, misuse of stolen tokens, and verification bypasses due to mutable options. These issues collectively pose a high risk to the integrity and availability of systems using affected versions of python-PyJWT.

Impact

The vulnerabilities can lead to denial of service via amplified outbound requests or CPU exhaustion, unauthorized token forgery allowing bypass of authentication, disclosure or substitution of cryptographic keys, failure of token revocation mechanisms, and server errors causing potential service disruption. These impacts threaten the confidentiality, integrity, and availability of systems relying on python-PyJWT for JWT handling.

Summary

The update for python-PyJWT fixes several security issues including: CVE-2026-101917 which allows attacker traffic to amplify outbound requests to the JWKS endpoint; CVE-2026-101918 where unauthenticated requests can cause HTTP 500 errors; CVE-2026-102267 involving potential disclosure or substitution of forwarded credentials or verification keys; CVE-2026-102268 and CVE-2026-102271 where attackers knowing the public key can forge authenticated HMAC tokens; CVE-2026-102269 where raw-token revocation checks may fail to recognize equivalent modified tokens; CVE-2026-102270 allowing attackers to cause intensive CPU consumption; CVE-2026-102274 where malformed RSA JWK aborts parsing of entire JWK sets; CVE-2026-102275 permitting use of stolen sender-constrained tokens without the private key; and CVE-2026-103001 where reused mutable options mappings can cause verification bypass on subsequent decode calls. These vulnerabilities affect the security and reliability of token verification and authentication processes in python-PyJWT.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Nov 2026, 20:48 UTC

Technical details

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