CVE catalog

CVE-2026-2443

libsoup2.4: CVE-2026-2443

Severity: Medium · CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Published: Feb 13, 2026, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.49% · Oct 25, 2026

A flaw was identified in libsoup, a widely used HTTP library in GNOME-based systems. When processing specially crafted HTTP Range headers, the library may improperly validate requested byte ranges. In certain build configurations, this could allow a remote attacker to access portions of server memory beyond the intended response. Exploitation requires a vulnerable configuration and access to a server using the embedded SoupServer component.

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	libsoup3	sid	`3.8.0-3`	fixed
Debian	libsoup3	forky	`3.8.0-3`	fixed
Debian	libsoup3	trixie	`3.6.5-3`	vulnerable
Debian	libsoup3	bookworm	`3.2.3-0+deb12u2`	vulnerable
Debian	libsoup2.4	trixie	`2.74.3-10.1`	vulnerable
Debian	libsoup2.4	bookworm	`2.74.3-1+deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libsoup3	source	sid	`3.6.6-1`	not yet assigned	Not reported	[1127905]
Debian	libsoup3	source	forky	`3.6.6-1`	not yet assigned	Not reported	[1127905]
Debian	libsoup3	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1127905]
Debian	libsoup3	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1127905]
Debian	libsoup2.4	source	trixie	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	libsoup2.4	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

[Debian bug #1127905]

Notes

[trixie] libsoup3: Minor issue [bookworm] libsoup3: Minor issue [trixie] libsoup2.4: Minor issue [bookworm] libsoup2.4: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gir1.2-soup-2.4]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
[gir1.2-soup-3.0]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · amd64 · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · arm64 · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
[libsoup2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
[libsoup2.4-common]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · all · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · all · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
[libsoup2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
[libsoup2.4-doc]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · all · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · all · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
[libsoup2.4-tests]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
[libsoup-3.0-0]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · amd64 · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · arm64 · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
[libsoup-3.0-common]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · all · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · all · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
[libsoup-3.0-dev]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · amd64 · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · arm64 · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
[libsoup-3.0-doc]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · all · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · all · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
[libsoup-3.0-tests]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · amd64 · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · arm64 · bookworm
  Affected
  dsa · libsoup3 · debian · bookworm; dsa · libsoup3 · debian · 12
[libsoup-gnome2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
[libsoup-gnome2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  dsa · libsoup2.4 · debian · bookworm; dsa · libsoup2.4 · debian · 12

[Debian 13 (Trixie)]

[gir1.2-soup-2.4]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · amd64 · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
- 2.74.3-10.1 · arm64 · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
[gir1.2-soup-3.0]Affected
Source package: [libsoup3]
Details (2)
- 3.6.5-3 · amd64 · trixie
  Affected
  dsa · libsoup3 · debian · 13
- 3.6.5-3 · arm64 · trixie
  Affected
  dsa · libsoup3 · debian · 13
[libsoup-2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · amd64 · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
- 2.74.3-10.1 · arm64 · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
[libsoup2.4-common]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · all · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
- 2.74.3-10.1 · all · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
[libsoup2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · amd64 · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
- 2.74.3-10.1 · arm64 · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
[libsoup2.4-doc]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · all · trixie
  Affected
  dsa · libsoup2.4 · debian · 13
- 2.74.3-10.1 · all · trixie
  Affected
  dsa · libsoup2.4 · debian · 13

Next results

Observed: Oct 24, 2026, 12:53:26 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]