CVE-2026-61452Public exploitNetwork attack vector

Persistent API access via nonrevocable JWTs

Published Jul 15, 2026 · Updated Jul 15, 2026

Improper session invalidation in the Grav API plugin before 2.0.4 allows remote attackers with stolen JWTs to retain API access. JwtAuthenticator generates access tokens without a jti claim, and validateToken neither checks their revocation nor invalidates them after account state changes. Possession of a stolen bearer token is required; it remains usable for its configured lifetime, one hour by default, even after logout, password change, or account disablement.

CVSS severityUnavailable
Unscored
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper session invalidation in the Grav API plugin before 2.0.4 allows remote attackers with stolen JWTs to retain API access. JwtAuthenticator generates access tokens without a jti claim, and validateToken neither checks their revocation nor invalidates them after account state changes. Possession of a stolen bearer token is required; it remains usable for its configured lifetime, one hour by default, even after logout, password change, or account disablement.

The record

CVE
CVE-2026-61452
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
Grav
Product
Grav
Classifications
T1550.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grav · Gravversion=0 <2.0.4

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1550.001Use Alternate Authentication Material: Application Access Token

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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