FKIE_CVE-2026-32597
Vulnerability from fkie_nvd - Published: 2026-03-13 19:55 - Updated: 2026-06-30 03:18
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| pyjwt_project | pyjwt | * |
{
"affected": [
{
"affectedData": [
{
"product": "pyjwt",
"vendor": "jpadilla",
"versions": [
{
"status": "affected",
"version": "\u003c 2.12.0"
}
]
}
],
"source": "security-advisories@github.com"
},
{
"affectedData": [
{
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.5::el8",
"cpe:/a:redhat:ansible_automation_platform_developer:2.5::el8",
"cpe:/a:redhat:ansible_automation_platform_inside:2.5::el8"
],
"defaultStatus": "affected",
"product": "Red Hat Ansible Automation Platform 2.5 for RHEL 8",
"vendor": "Red Hat"
},
{
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"cpe:/a:redhat:ansible_automation_platform_developer:2.5::el9",
"cpe:/a:redhat:ansible_automation_platform_inside:2.5::el9"
],
"defaultStatus": "affected",
"product": "Red Hat Ansible Automation Platform 2.5 for RHEL 9",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9",
"cpe:/a:redhat:ansible_automation_platform_developer:2.6::el9",
"cpe:/a:redhat:ansible_automation_platform_inside:2.6::el9"
],
"defaultStatus": "affected",
"product": "Red Hat Ansible Automation Platform 2.6 for RHEL 9",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
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"cpe:/o:redhat:enterprise_linux:10.2"
],
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"product": "Red Hat Enterprise Linux AppStream (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
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],
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"product": "Red Hat Enterprise Linux AppStream (v. 8)",
"vendor": "Red Hat"
},
{
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],
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{
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{
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"vendor": "Red Hat"
},
{
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],
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"product": "Red Hat Enterprise Linux AppStream (v. 9)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::highavailability"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux HighAvailability (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::highavailability"
],
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"product": "Red Hat Enterprise Linux High Availability E4S (v.9.2)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4::highavailability"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux High Availability EUS (v.9.4)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:ai_inference_server:3.3::el9"
],
"defaultStatus": "affected",
"product": "Red Hat AI Inference Server 3.3",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.5::el8"
],
"defaultStatus": "affected",
"product": "Red Hat Ansible Automation Platform 2.5",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"product": "Red Hat Ansible Automation Platform 2.6",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux_ai:3.3::el9"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AI 3.3",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift_ai:2.25::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift AI 2.25",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift AI 3.3",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:quay:3.12::el8"
],
"defaultStatus": "affected",
"product": "Red Hat Quay 3.12",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:quay:3.15::el8"
],
"defaultStatus": "affected",
"product": "Red Hat Quay 3.15",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:quay:3.16::el9"
],
"defaultStatus": "affected",
"product": "Red Hat Quay 3.16",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:quay:3.10::el8"
],
"defaultStatus": "affected",
"product": "Red Hat Quay 3.1",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:quay:3.9::el8"
],
"defaultStatus": "affected",
"product": "Red Hat Quay 3.9",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9"
],
"defaultStatus": "affected",
"product": "Red Hat Satellite 6.18",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:trusted_artifact_signer:1.4::el9"
],
"defaultStatus": "affected",
"product": "Red Hat Trusted Artifact Signer 1.4",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::resilientstorage"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux ResilientStorage (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::resilientstorage"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux Resilient Storage E4S (v.9.2)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4::resilientstorage"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux Resilient Storage EUS (v.9.4)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift_lightspeed"
],
"defaultStatus": "affected",
"product": "OpenShift Lightspeed",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:ai_inference_server:3"
],
"defaultStatus": "affected",
"product": "Red Hat AI Inference Server",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2"
],
"defaultStatus": "affected",
"product": "Red Hat Ansible Automation Platform 2",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift_ai"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift AI (RHOAI)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:satellite:6"
],
"defaultStatus": "affected",
"product": "Red Hat Satellite 6",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:trusted_artifact_signer:1"
],
"defaultStatus": "affected",
"product": "Red Hat Trusted Artifact Signer",
"vendor": "Red Hat"
},
{
"cpes": [
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"cpe:/a:redhat:ansible_automation_platform_developer:2.6::el10"
],
"defaultStatus": "unaffected",
"product": "Red Hat Ansible Automation Platform 2.6 for RHEL 10",
"vendor": "Red Hat"
}
],
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}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:pyjwt_project:pyjwt:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D2DD4AAA-0853-4F5A-A6BA-DB29F584BD6E",
"versionEndExcluding": "2.12.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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 \u00a74.1.11. 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."
},
{
"lang": "es",
"value": "PyJWT es una implementaci\u00f3n de JSON Web Token en Python. Antes de la 2.12.0, PyJWT no valida el par\u00e1metro de encabezado crit (Cr\u00edtico) definido en la RFC 7515 \u00a74.1.11. Cuando un token JWS contiene un array crit que lista extensiones que PyJWT no entiende, la biblioteca acepta el token en lugar de rechazarlo. Esto viola el requisito MUST en la RFC. Esta vulnerabilidad est\u00e1 corregida en la 2.12.0."
}
],
"id": "CVE-2026-32597",
"lastModified": "2026-06-30T03:18:32.670",
"metrics": {
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"baseScore": 7.5,
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"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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"role": "CISA Coordinator",
"timestamp": "2026-03-13T14:48:42.534762Z",
"version": "2.0.3"
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"published": "2026-03-13T19:55:09.500",
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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