Squid 3.4.4 through 3.4.11 and 3.5.0.1 through 3.5.1, when Digest authentication is used…
Priority LOW 32CWE-264Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
Squid 3.4.4 through 3.4.11 and 3.5.0.1 through 3.5.1, when Digest authentication is used, allow remote authenticated users to retain access by leveraging a stale nonce, aka "Nonce replay vulnerability."
Why it matters now
EPSS 0.11441 96th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
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 · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:squid-cache:squid:3.4.4:*:*:*:*:*:*:* | 3.4.4 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.5:*:*:*:*:*:*:* | 3.4.5 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.6:*:*:*:*:*:*:* | 3.4.6 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.7:*:*:*:*:*:*:* | 3.4.7 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.8:*:*:*:*:*:*:* | 3.4.8 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.9:*:*:*:*:*:*:* | 3.4.9 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.10:*:*:*:*:*:*:* | 3.4.10 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.11:*:*:*:*:*:*:* | 3.4.11 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.12:*:*:*:*:*:*:* | 3.4.12 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.4.13:*:*:*:*:*:*:* | 3.4.13 | Vulnerable | squid-cache |
- cpe:2.3:a:squid-cache:squid:3.4.4:*:*:*:*:*:*:* Versions 3.4.4 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.5:*:*:*:*:*:*:* Versions 3.4.5 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.6:*:*:*:*:*:*:* Versions 3.4.6 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.7:*:*:*:*:*:*:* Versions 3.4.7 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.8:*:*:*:*:*:*:* Versions 3.4.8 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.9:*:*:*:*:*:*:* Versions 3.4.9 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.10:*:*:*:*:*:*:* Versions 3.4.10 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.11:*:*:*:*:*:*:* Versions 3.4.11 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.12:*:*:*:*:*:*:* Versions 3.4.12 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.4.13:*:*:*:*:*:*:* Versions 3.4.13 Vulnerable ·squid-cache
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:squid-cache:squid:3.5.0.1:*:*:*:*:*:*:* | 3.5.0.1 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.5.0.2:*:*:*:*:*:*:* | 3.5.0.2 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.5.0.3:*:*:*:*:*:*:* | 3.5.0.3 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.5.0.4:*:*:*:*:*:*:* | 3.5.0.4 | Vulnerable | squid-cache |
| cpe:2.3:a:squid-cache:squid:3.5.1:*:*:*:*:*:*:* | 3.5.1 | Vulnerable | squid-cache |
| cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* | 13.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* | 13.2 | Vulnerable | openSUSE |
- cpe:2.3:a:squid-cache:squid:3.5.0.1:*:*:*:*:*:*:* Versions 3.5.0.1 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.5.0.2:*:*:*:*:*:*:* Versions 3.5.0.2 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.5.0.3:*:*:*:*:*:*:* Versions 3.5.0.3 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.5.0.4:*:*:*:*:*:*:* Versions 3.5.0.4 Vulnerable ·squid-cache
- cpe:2.3:a:squid-cache:squid:3.5.1:*:*:*:*:*:*:* Versions 3.5.1 Vulnerable ·squid-cache
- cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* Versions 13.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* Versions 13.2 Vulnerable ·openSUSE
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2014-9749
- 2026-10-03 Alias added: GHSA-4g27-gq63-x5mg
References
Advisory 1
Other 4
- [oss-security] 20151001 CVE Request: squid: Nonce replay vulnerability in Digest authentication
- http://bugs.squid-cache.org/show_bug.cgi?id=4066
- [oss-security] 20151011 Re: CVE Request: squid: Nonce replay vulnerability in Digest authentication
- [oss-security] 20151012 Re: Re: CVE Request: squid: Nonce replay vulnerability in Digest authentication
Sources
- CVE-2014-9749 · CVE Program
- CVE-2014-9749 · NVD
- FIRST EPSS
- GHSA-4g27-gq63-x5mg · GitHub Advisory Database · CC BY 4.0
- CVE-2014-9749 · Red Hat security data · CC BY 4.0
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