CVE-2005-0241
MediumThe httpProcessReplyHeader function in http.c for Squid 2.5-STABLE7 and earlier does not properly set the debug context when it is handling "oversized" HTTP reply headers, which might allow remote attackers to poison the cache or bypass access controls based on header size.
Published May 2, 2005 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2005-0241
Key Facts
Patch immediately- CVE-2005-0241 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Squid.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 70% probability of exploitation in the next 30 days.
- Fixed versions are available, including Squid 2.5.7-7, Squid 7:2.5.STABLE6-3.4E.3.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
5.0
AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS (30-day exploit likelihood)
70%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
The httpProcessReplyHeader function in http.c for Squid 2.5-STABLE7 and earlier does not properly set the debug context when it is handling "oversized" HTTP reply headers, which might allow remote attackers to poison the cache or bypass access controls based on header size.
Affected Products
19 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SquidSquid | 2.5.stable1, 2.5.stable2, 2.5.stable3, 2.5.stable4, 2.5.stable5, 2.5.stable6, 2.5.stable7 | 2.5.7-7 |
Patched Releases
Squid
2.5.7-7, 7:2.5.STABLE6-3.4E.3
Timeline
Publicly disclosed
May 2, 2005
Last updated
Aug 4, 2026
References
- advisoryRHSA-2005:060
- advisoryRHSA-2005:061
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2005-0241
- patchCLA-2005:931
- patchVU#823350
FAQ
Common Questions.
The httpProcessReplyHeader function in http.c for Squid 2.5-STABLE7 and earlier does not properly set the debug context when it is handling "oversized" HTTP reply headers, which might allow remote attackers to poison the cache or bypass access controls based on header size.
Affected: Squid versions 2.5.stable1, 2.5.stable2, 2.5.stable3, 2.5.stable4, 2.5.stable5, 2.5.stable6, 2.5.stable7. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Squid 2.5.7-7, Squid 7:2.5.STABLE6-3.4E.3.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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