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Vulnerabilities

Vulnerability · GHSA-wwhq-w58m-w29c

GHSA-wwhq-w58m-w29c is listed by Caddy CVE-2026-30852 Fix Bypass.

Published May 13, 2026 · catalog updated May 13, 2026 · the affected product

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Open the advisory

Exploitation likelihood is not on this record for GHSA-wwhq-w58m-w29c. A missing EPSS score is not a low risk. Compare the affected product with the linked advisory before you change production.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
High—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Version ranges on file
Affected products
go github.com/caddyserver/caddy/v2/modules/caddyhttp

GHSA-wwhq-w58m-w29c is listed by Caddy CVE-2026-30852 Fix Bypass.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • go github.com/caddyserver/caddy/v2/modules/caddyhttp<=2.11.2

How to fix GHSA-wwhq-w58m-w29c

  • Upgrade

    GHSA-wwhq-w58m-w29c lists a fix boundary at 2.11.2. Compare the installed build with that boundary before you change production.

  • Version check

    Affected <=2.11.2

  • Advisory

    Open the inventory_github record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for GHSA-wwhq-w58m-w29c. A missing EPSS score is not a low risk. Compare the affected product with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with <=2.11.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-917: Expression Language Injection. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Caddy security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 13, 2026 · Maintainer security tabs

    Detected

    GHSA-wwhq-w58m-w29c is listed by Caddy CVE-2026-30852 Fix Bypass.

  2. May 13, 2026 · Maintainer security tabs

    Updated

    GHSA-wwhq-w58m-w29c is listed by Caddy CVE-2026-30852 Fix Bypass.

Sources

  • Maintainer security tabsVendor advisoryGHSA-wwhq-w58m-w29c

    # ## TL;DR CVE-2026-30852 fixed double expansion in when the variable key is a placeholder (e.g. ). The fix does NOT protect literal key names (e.g. ). An attacker injects or via a request header → Caddy expands it on the second pass → secrets leaked in response headers. **Affected:** Caddy v2.11.0 through v2.11.2 (latest). All versions since the CVE-2026-30852 fix. ## Root Cause , lines 215-217:

    github.com

Freshness

Last verified in this catalog May 13, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Maintainer security tabsNov 1, 2026
GHSA-wwhq-w58m-w29c: is listed by Caddy High · ZeroDay Findings