How severe is CVE-2024-21492?

CVE-2024-21492 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-21492 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21492?

CVE-2024-21492 affects Authcrunch Caddy-security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21492?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21492 have an EU (EUVD) identifier?

Yes. CVE-2024-21492 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0739.

When was CVE-2024-21492 published?

CVE-2024-21492 was published on 2024-02-17 and last updated on 2026-06-17.

CVE-2024-21492

CVE-2024-21492 is a medium-severity vulnerability in Authcrunch Caddy-security with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-613.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0739
Weakness: CWE-613
Affected product: Authcrunch Caddy-security
Published: 2024-02-17
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2024-21492?: 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.
How severe is CVE-2024-21492?: CVE-2024-21492 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-21492 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21492?: CVE-2024-21492 affects Authcrunch Caddy-security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21492?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21492 have an EU (EUVD) identifier?: Yes. CVE-2024-21492 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0739.
When was CVE-2024-21492 published?: CVE-2024-21492 was published on 2024-02-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:authcrunch:caddy-security:-:*:*:*:*:*:*:*

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