cyberark conjur up to 1.22.0 Regular Expression reliance on untrusted inputs in a security decision

Summaryinfo

A vulnerability, which was classified as critical, has been found in cyberark conjur up to 1.22.0. This affects an unknown part of the component Regular Expression Handler. Performing a manipulation results in reliance on untrusted inputs in a security decision. This vulnerability is reported as CVE-2025-49827. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in cyberark conjur up to 1.22.0. It has been classified as critical. This affects an unknown functionality of the component Regular Expression Handler. The manipulation with an unknown input leads to a reliance on untrusted inputs in a security decision vulnerability. CWE is classifying the issue as CWE-807. The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Conjur provides secrets management and application identity for infrastructure. Conjur OSS versions 1.19.5 through 1.22.0 and Secrets Manager, Self-Hosted (formerly known as Conjur Enterprise) 13.1 through 13.5 and 13.6 are vulnerable to bypass of the IAM authenticator. An attacker who can manipulate the headers signed by AWS can take advantage of a malformed regular expression to redirect the authentication validation request that Secrets Manager, Self-Hosted sends to AWS to a malicious server controlled by the attacker. This redirection could result in a bypass of the Secrets Manager, Self-Hosted IAM Authenticator, granting the attacker the permissions granted to the client whose request was manipulated. This issue affects both Secrets Manager, Self-Hosted (formerly Conjur Enterprise) and Conjur OSS. Conjur OSS version 1.22.1 and Secrets Manager, Self-Hosted versions 13.5.1 and 13.6.1 fix the issue.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-49827 since 06/11/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.22.1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Vendor

• cyberark

Name

• conjur

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22.0

Website

• Product: https://github.com/cyberark/conjur/

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