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Servers and applications

CVE-2015-0881

CRLF injection vulnerability in Squid before 3.1.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted header in a response.

Severity
Medium 4.3
Published
20 Feb 2015
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
4.5% in the next 30 daysHigher than 91% of CVEs. EPSS by FIRST, 11 Nov 2026
Attack
Over the network · No login needed
Attacker can
Change some data
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Sources
NVD

Affected software

SoftwareAffected versions
SquidServers and applications · cpe:a:squid-cache:squid
  • Every version up to 3.1.0.18

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-0881
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-0881