CVE catalog

CVE-2026-1760

libsoup2.4: CVE-2026-1760

Severity: High · CVSS 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Published: Feb 2, 2026, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.48% · Oct 27, 2026

A flaw was found in SoupServer. This HTTP request smuggling vulnerability occurs because SoupServer improperly handles requests that combine Transfer-Encoding: chunked and Connection: keep-alive headers. A remote, unauthenticated client can exploit this by sending specially crafted requests, causing SoupServer to fail to close the connection as required by RFC 9112. This allows the attacker to smuggle additional requests over the persistent connection, leading to unintended request processing and potential denial-of-service (DoS) conditions.

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	`3.6.5-8`	not yet assigned	Not reported	[1126876]
Debian	libsoup3	source	forky	`3.6.5-8`	not yet assigned	Not reported	[1126876]
Debian	libsoup3	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1126876]
Debian	libsoup3	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1126876]
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 #1126876]

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, 1:06:29 AM UTC

References

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