CVE-2025-49827 Conjur OSS and Secrets Manager, Self-Hosted (formerly Conjur Enterprise) Vulnerable to Bypass of IAM Authenticator

Critical 9.1 Published Updated

Attackers can bypass IAM authentication by manipulating AWS-signed headers to redirect validation requests, gaining unauthorized access to secrets.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-49827?

CVE-2025-49827 is a critical authentication bypass vulnerability in cyberark conjur, published on 15 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-807

Which versions are affected by CVE-2025-49827?

It affects 1 product.

Products include Cyberark Conjur.

How do I fix CVE-2025-49827?

No fix has been published for CVE-2025-49827 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-49827 being exploited?

There is no known exploitation of CVE-2025-49827 in the wild and no public exploit code.

Sources

Also known as GHSA-gmc5-9mpc-xg75.

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