CVE-2023-45683: github.com/crewjam/saml is a saml library for the go language

Q: How do I fix CVE-2023-45683?

saml: upgrade to 0.4.14. Exact commands for each OS are on this page.

Q: Is CVE-2023-45683 being exploited?

CVE-2023-45683 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-45683 affect?

CVE-2023-45683 affects saml. Severity is high (CVSS 7.1). github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious S

Routine

HIGH 7.1UPGRADE

CVE-2023-45683 is a high-severity flaw (CVSS 7.1) affecting saml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an a

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-10-16
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: saml project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-10-16 19:15 UTCPublished CVE record published
2026-06-17 06:29 UTCUpdated Record last modified

saml project saml UPGRADE

Affected: < 0.4.14

Fixed in: 0.4.14

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy saml || rpm -q saml || saml --version

2. UPGRADE to 0.4.14 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade saml

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade saml

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-45683?

saml: upgrade to 0.4.14. Exact commands for each OS are on this page.

Is CVE-2023-45683 being exploited?

CVE-2023-45683 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-45683 affect?

CVE-2023-45683 affects saml. Severity is high (CVSS 7.1). github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious S

How urgent is CVE-2023-45683?

Priority 35/100. High severity

Software pages

GitHub vulnerabilities

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References

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