CVE-2024-21492: All versions of the package github.com/greenpau/caddy-security are vulnerable to Insufficient Session Expirati

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MEDIUM 4.8REMOTEMITIGATE

CVE-2024-21492 is a medium-severity flaw (CVSS 4.8) affecting caddy-security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

All versions of the package github.com/greenpau/caddy-security are vulnerable to Insufficient Session Expiration due to improper user session invalidation upon clicking the "Sign Out" button. User sessions remain valid even after requests are sent to /logout and /oauth2/google/logout. Attackers who gain access to an active but supposedly logged-out session can perform unauthorized actions on behalf of the user.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-613
Published	2024-02-17
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: authcrunch

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

Am I affected?

Timeline

2024-02-17 05:15 UTCPublished CVE record published
2026-06-17 07:09 UTCUpdated Record last modified

authcrunch caddy-security MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy caddy-security || rpm -q caddy-security || caddy-security --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2024-21492?

caddy-security: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-21492 being exploited?

CVE-2024-21492 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-2024-21492 affect?

CVE-2024-21492 affects caddy-security. Severity is medium (CVSS 4.8). All versions of the package github.com/greenpau/caddy-security are vulnerable to Insufficient Session Expiration due to improper user session invalidation upon clicking the "Sign Out" button. User sessions remain valid even after requests a

How urgent is CVE-2024-21492?

Priority 40/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

GitHub vulnerabilities · Caddy vulnerabilities

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References

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