Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to…
Priority LOW 29Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass access controls via a newline in the user/password pair.
Why it matters now
EPSS 0.03573 89th percentileScored 2026-11-07
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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:national_science_foundation:squid_web_proxy:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy:1.0novm:*:*:*:*:*:*:* | 1.0novm | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy:1.1:*:*:*:*:*:*:* | 1.1 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy:2.2:*:*:*:*:*:*:* | 2.2 | Vulnerable | National Science Foundation |
- cpe:2.3:a:national_science_foundation:squid_web_proxy:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy:1.0novm:*:*:*:*:*:*:* Versions 1.0novm Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy:2.2:*:*:*:*:*:*:* Versions 2.2 Vulnerable ·National Science Foundation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-1999-1481
- 2026-10-03 Alias added: GHSA-fx2h-93c2-339q
References
More National Science Foundation Squid Web Proxy vulnerabilities
- TI-1999-01221 Squid Internet Object Cache 1.1.20 allows users to bypass access control lists (ACLs) by… CVSS 2.0HIGH 7.5
- TI-2001-00142 squid 2.3 and earlier allows local users to overwrite arbitrary files via a symlink attack in some configurations. CVSS 2.0LOW 1.2
Sources
- CVE-1999-1481 · CVE Program
- CVE-1999-1481 · NVD
- FIRST EPSS
- GHSA-fx2h-93c2-339q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences