Trending
CVE-2026-32597

CVE detail

CVE-2026-32597

PyJWT is a JSON Web Token implementation in Python. Prior to 2.12.0, PyJWT does not validate the crit (Critical) Header Parameter defined in RFC 7515 §4.1.11. When a JWS token contains a crit array listing extensions that PyJWT does not understand, the library accepts the token instead of rejecting it. This violates the MUST requirement in the RFC. This vulnerability is fixed in 2.12.0.

CVSS 7.5 · HighBuzz score 44.5

Buzz score

Why this CVE is surfacing

Buzz score total 44.5

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 30.0 · diversity 14.5 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

30.0

35 evidence mentions in the snapshot

Diversity score

14.5

5 sources across 2 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

35 source links · newest first

https://access.redhat.com/errata/RHSA-2026:42644access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32597.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comMar 13, 2026, 7:55 PM
https://bugzilla.redhat.com/show_bug.cgi?id=2447194bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/security/cve/CVE-2026-32597access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:8748access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:8747access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:8746access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:8437access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:6926access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:6912access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:6720access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:6568access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:37275access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:26226access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:24977access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:22330access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:21517access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:21431access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:19712access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:19375access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:19355access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:19138access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:17083access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:13916access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:13672access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:13553access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:13545access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:13512access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:13508access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:12176access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:10184access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:10141access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://access.redhat.com/errata/RHSA-2026:10140access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMar 13, 2026, 7:55 PM
https://lists.debian.org/debian-lts-announce/2026/05/msg00008.htmllists.debian.org
No excerpt available.
Vendor Advisorylists.debian.orgMar 13, 2026, 7:55 PM
https://github.com/jpadilla/pyjwt/security/advisories/GHSA-752w-5fwx-jx9fgithub.com
No excerpt available.
Exploitgithub.comMar 13, 2026, 7:55 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

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External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-32597.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:a:pyjwt_project:pyjwtSearch this product on Shodan

Exact CVE query

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Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2026-32597Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Modified

Published

Mar 13, 2026

Modified

Jul 22, 2026

Official record

Authoritative NVD record

CVSS vector

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

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): None. There is no direct impact to this security property.
Integrity Impact (I): High. There is a total or serious impact to this security property.
Availability Impact (A): None. There is no direct impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses