November 4, 2026

CVE Watchtower

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CVE-2024-45409NVD

Vulnerability Summary

The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by the IdP) can thus forge a SAML Response/Assertion with arbitrary contents. This would allow the attacker to log in as arbitrary user within the vulnerable system. This vulnerability is fixed in 1.17.0 and 1.12.3.
Severity Level
CRITICAL(10.0)
Published Date
Sep 10, 2024
Last Modified
Nov 3, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
10.68%Probability
Root Weakness (CWE)
CWE-347: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 10.0 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Onelogin Ruby-saml < 1.12.3
  • Onelogin Ruby-saml >= 1.13.0 and < 1.17.0
  • Omniauth Omniauth Saml <= 1.10.3
  • Omniauth Omniauth Saml
  • Gitlab Gitlab < 16.11.10
  • Gitlab Gitlab >= 17.0.0 and < 17.0.8
  • Gitlab Gitlab >= 17.1.0 and < 17.1.8
  • Gitlab Gitlab >= 17.2.0 and < 17.2.7
  • Gitlab Gitlab >= 17.3.0 and < 17.3.3
Patched Versions
  • Onelogin Ruby-saml 1.12.3
  • Onelogin Ruby-saml 1.17.0
  • Gitlab Gitlab 16.11.10
  • Gitlab Gitlab 17.0.8
  • Gitlab Gitlab 17.1.8
  • Gitlab Gitlab 17.2.7
  • Gitlab Gitlab 17.3.3
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
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External References