TI-2024-14249 Aliases CVE-2024-21492 GHSA-vp66-gf7w-9m4x

Insufficient session expiration in github.com/greenpau/caddy-security

LOW 36CWE-613Published 2024-02-17 · Updated 2024-12-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-613.

Summary

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 it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00711 53rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	github.com/greenpau/caddy-security	all versions	—	No fix listed	CNA
—	github.com/greenpau/caddy-security (Go)	up to 1.1.23	—	No fix listed	GHSA-vp66-gf7w-9m4x

github.com/greenpau/caddy-security Vendor— Affected all versions Fixed in — No fix listed CNA
github.com/greenpau/caddy-security (Go) Vendor— Affected up to 1.1.23 Fixed in — No fix listed GHSA-vp66-gf7w-9m4x

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:authcrunch:caddy-security:-:::::::*	not specified by NVD	Vulnerable	Authcrunch

cpe:2.3:a:authcrunch:caddy-security:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Authcrunch

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-21492
2026-10-03 Alias added: GHSA-vp66-gf7w-9m4x

References

Exploit 1

https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/

Advisory 2

Other 1

https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy

TI-2023-28778 The caddy-security plugin 1.1.20 for Caddy allows reflected XSS via a GET request to a… CVSS 3.1MEDIUM 6.1
TI-2024-14255 Server-side request forgery in github.com/greenpau/caddy-security CVSS 3.1MEDIUM 5.3
TI-2024-14257 Missing brute-force protection in github.com/greenpau/caddy-security CVSS 3.1MEDIUM 6.5
TI-2024-14253 Cross-site scripting in github.com/greenpau/caddy-security CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences