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CVE-2023-37471

28
FAUCET Score

CVE-2023-37471 is a critical vulnerability affecting OpenAM up to version 14.7.2, stemming from improper validation of SAML response signatures during the SAMLv1.x Single Sign-On process. This flaw allows unauthenticated attackers to impersonate any OpenAM user, including administrators, by sending a specially crafted SAML response. With a CVSS score of 9.8 (CRITICAL), the vulnerability presents a high risk to confidentiality, integrity, and availability, requiring no user interaction or prior authentication for exploitation. While no public exploit code or active exploitation has been observed, and community discussion is minimal, immediate patching to OpenAM 14.7.3-SNAPSHOT or later is strongly recommended.

Impacted Technologies

VendorProductVersion(s)CPE
< 14.7.3CPE matchmatch criteria
cpe:2.3:a:openidentityplatform:openam:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 53rd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.openidentityplatform.openam:openam-federation-libraryFixed in: 14.7.3

Vendor Advisories (1)

mavenGHSA-4mh8-9wq6-rjxgcritical

OpenAM vulnerable to user impersonation using SAMLv1.x SSO process

Jul 20, 2023

References

github.com / OpenIdentityPlatform/OpenAM/commit/7c18543d126e8a567b83bb4535631825aaa9d742
Patch
github.com / OpenIdentityPlatform/OpenAM/pull/624
Patch
github.com / OpenIdentityPlatform/OpenAM/security/advisories/GHSA-4mh8-9wq6-rjxg
Vendor Advisory