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Jwt Attack CVE-2026-65616

| EUVDEUVD-2026-49576 HIGH
Improper Verification of Cryptographic Signature (CWE-347)
2026-07-27 JFROG GHSA-w257-36fh-jmr6
8.8
CVSS 3.1 · Vendor: JFROG
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Severity by source

Vendor (JFROG) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (JFROG) · only source for this CVE.

CVSS VectorVendor: JFROG

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Jul 27, 2026 - 21:17 EUVD
Analysis Generated
Jul 27, 2026 - 20:22 vuln.today
CVE Published
Jul 27, 2026 - 19:34 cve.org
HIGH 8.8

DescriptionCVE.org

Incorrect authorization validation in refresh token signature allows non-admin users to obtain a signed JFrog administrator token.

AnalysisAI

Privilege escalation in JFrog Artifactory allows low-privileged authenticated users to forge administrator JWTs by exploiting missing signature validation on refresh tokens. An attacker with any user account can gain full admin control, rated CVSS 8.8. …

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CVE-2026-65616 vulnerability details – vuln.today

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