Servers and applications
CVE-2012-0053
protocol.c in the Apache HTTP Server 2.2.x through 2.2.21 does not properly restrict header information during construction of Bad Request (aka 400) error documents, which allows remote attackers to obtain the values of HTTPOnly cookies via vectors involving a (1) long or (2) malformed header in conjunction with crafted web script.
- Severity
- Medium 4.3
- Published
- 28 Jan 2012
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 17 Oct 2026
- Fixed in
- 2.0.65, 2.2.22
- Exploit chance
- 82% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 12 Nov 2026
- Attack
- Over the network · No login needed
- Attacker can
- Read some data
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:N/A:N- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
Apache HTTP ServerServers and applications · cpe:a:apache:http_server |
|