The ExpandCert function in Apache-SSL before apache_1.3.41+ssl_1.59 does not properly…
Priority LOW 37CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
The ExpandCert function in Apache-SSL before apache_1.3.41+ssl_1.59 does not properly handle (1) '/' and (2) '=' characters in a Distinguished Name (DN) in a client certificate, which might allow remote attackers to bypass authentication via a crafted DN that triggers overwriting of environment variables.
Why it matters now
EPSS 0.0187 79th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache-ssl:apache-ssl:1.3.34_1.57:*:*:*:*:*:*:* | 1.3.34_1.57 | Vulnerable | Apache-ssl |
- cpe:2.3:a:apache-ssl:apache-ssl:1.3.34_1.57:*:*:*:*:*:*:* Versions 1.3.34_1.57 Vulnerable ·Apache-ssl
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-0555
- 2026-10-03 Alias added: GHSA-7843-hchm-wf25
References
More Apache-ssl vulnerabilities
- TI-2002-00078 The dbm and shm session cache code in mod_ssl before 2.8.7-1.3.23, and Apache-SSL before… CVSS 2.0HIGH 7.5
- TI-2004-00009 Apache-SSL 1.3.28+1.52 and earlier, with SSLVerifyClient set to 1 or 3 and… CVSS 2.0HIGH 7.5
Sources
- CVE-2008-0555 · CVE Program
- CVE-2008-0555 · NVD
- FIRST EPSS
- GHSA-7843-hchm-wf25 · GitHub Advisory Database · CC BY 4.0
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