CVE catalog

CVE-2025-0825

cpp-httplib: CVE-2025-0825

Severity: Medium
Published: Feb 4, 2025, 3:15:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.41% · Oct 25, 2026

cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters ("\r\n") when those are prefixed with a null byte. This enables attackers to exploit CRLF injection that could further lead to HTTP Response Splitting, XSS, and more.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	cpp-httplib	sid	`0.41.0+ds-3`	fixed
Debian	cpp-httplib	forky	`0.41.0+ds-3`	fixed
Debian	cpp-httplib	trixie	`0.18.7-1+deb13u1`	fixed
Debian	cpp-httplib	trixie-security	`0.18.7-1+deb13u1`	fixed
Debian	cpp-httplib	bookworm	`0.11.4+ds-1+deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	cpp-httplib	source	sid	`0.18.7-1`	not yet assigned	Not reported	Not reported
Debian	cpp-httplib	source	forky	`0.18.7-1`	not yet assigned	Not reported	Not reported
Debian	cpp-httplib	source	trixie	`0.18.7-1`	not yet assigned	Not reported	Not reported
Debian	cpp-httplib	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

Notes

[bookworm] cpp-httplib: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libcpp-httplib0.11]Affected
Source package: [cpp-httplib]
Details (2)
- 0.11.4+ds-1+deb12u1 · amd64 · bookworm
  Affected
  dsa · cpp-httplib · debian · bookworm; dsa · cpp-httplib · debian · 12
- 0.11.4+ds-1+deb12u1 · arm64 · bookworm
  Affected
  dsa · cpp-httplib · debian · bookworm; dsa · cpp-httplib · debian · 12
[libcpp-httplib-dev]Affected
Source package: [cpp-httplib]
Details (2)
- 0.11.4+ds-1+deb12u1 · amd64 · bookworm
  Affected
  dsa · cpp-httplib · debian · bookworm; dsa · cpp-httplib · debian · 12
- 0.11.4+ds-1+deb12u1 · arm64 · bookworm
  Affected
  dsa · cpp-httplib · debian · bookworm; dsa · cpp-httplib · debian · 12

[Debian 13 (Trixie)]

[libcpp-httplib0.18]Fixed
Source package: [cpp-httplib]
Details (4)
- 0.18.7-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.18.7-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.18.7-1+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.18.7-1+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
[libcpp-httplib0.41]Fixed
Source package: [cpp-httplib]
Details (2)
- 0.41.0+ds-3~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.41.0+ds-3~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
[libcpp-httplib-dev]Fixed
Source package: [cpp-httplib]
Details (6)
- 0.18.7-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.18.7-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.41.0+ds-3~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.41.0+ds-3~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.18.7-1+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13
- 0.18.7-1+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 0.18.7-1
  dsa · cpp-httplib · debian · 13

Observed: Oct 27, 2026, 6:36:11 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]