CVE catalog

CVE-2026-12547

Severity: Medium · CVSS 4.1CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
Published: Apr 25, 2026, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.23% · Oct 25, 2026

SoupAuthManager caches proxy authentication credentials without scoping them to the proxy authority (host:port). When the proxy configuration changes (e.g., via system settings or WPAD), cached Proxy-Authorization headers from the previous proxy are sent to the new proxy, leaking credentials.

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
Suse	libsoup	linux enterprise module for basesystem 15 sp7	`3.4.4-150600.3.56.1`	fixed
Suse	libsoup	linux enterprise server 15 sp6-ltss	`3.4.4-150600.3.56.1`	fixed
Suse	libsoup	linux enterprise server for sap applications 15 sp6	`3.4.4-150600.3.56.1`	fixed
Ubuntu	libsoup2.4	pro	`2.74.3-10.1ubuntu4`	vulnerable
Ubuntu	libsoup2.4	pro	`2.74.3-10.1ubuntu5`	vulnerable
Ubuntu	libsoup2.4	pro	`2.74.3-10.1ubuntu5+esm1`	vulnerable
Ubuntu	libsoup2.4	pro	`2.74.3-10.1ubuntu5+esm2`	vulnerable
Ubuntu	libsoup2.4	pro	`2.74.3-10.1ubuntu5+esm3`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.72.0-3ubuntu3`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.1-1`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-2`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.1`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.2`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.3`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.4`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.5`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.6`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.7`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.8`	vulnerable
Ubuntu	libsoup2.4	22.04	`2.74.2-3ubuntu0.9`	vulnerable
Ubuntu	libsoup3	pro	`3.0.4-2`	vulnerable
Ubuntu	libsoup3	pro	`3.0.4-3`	vulnerable
Ubuntu	libsoup3	pro	`3.0.5-1`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm1`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm2`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm3`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm4`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm5`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm6`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm7`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm8`	vulnerable
Ubuntu	libsoup3	pro	`3.0.7-0ubuntu1+esm9`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-1`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-2`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-3`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6build1`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.1`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.2`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.3`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.4`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.5`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.6`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.7`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.8`	vulnerable
Ubuntu	libsoup2.4	24.04	`2.74.3-6ubuntu1.9`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.2-4`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-1`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-2`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-4`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5build1`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5build2`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.1`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.2`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.3`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.4`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.5`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.6`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.7`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.8`	vulnerable
Ubuntu	libsoup3	24.04	`3.4.4-5ubuntu0.9`	vulnerable
Ubuntu	libsoup2.4	26.10	`2.74.3-10.1ubuntu5`	vulnerable
Ubuntu	libsoup3	26.10	`3.6.6-1`	vulnerable
Ubuntu	libsoup3	26.10	`3.6.6-1ubuntu3`	vulnerable
Ubuntu	libsoup3	26.04	`3.6.5-4`	vulnerable
Ubuntu	libsoup3	26.04	`3.6.5-5`	vulnerable
Ubuntu	libsoup3	26.04	`3.6.5-6`	vulnerable
Ubuntu	libsoup3	26.04	`3.6.5-7`	vulnerable
Ubuntu	libsoup3	26.04	`3.6.5-9`	vulnerable
Ubuntu	libsoup3	26.04	`3.6.6-1`	vulnerable
Ubuntu	libsoup3	26.04	`3.6.6-1ubuntu0.1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libsoup3	source	sid	`3.8.0-1`	not yet assigned	Not reported	[1142837]
Debian	libsoup3	source	forky	`3.8.0-1`	not yet assigned	Not reported	[1142837]
Debian	libsoup3	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1142837]
Debian	libsoup3	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1142837]
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
Suse	libsoup	rpm	linux enterprise module for basesystem 15 sp7	`3.4.4-150600.3.56.1`	Not reported	SUSE-SU-2026:4558-1	Not reported
Suse	libsoup	rpm	linux enterprise server 15 sp6-ltss	`3.4.4-150600.3.56.1`	Not reported	SUSE-SU-2026:4558-1	Not reported
Suse	libsoup	rpm	linux enterprise server for sap applications 15 sp6	`3.4.4-150600.3.56.1`	Not reported	SUSE-SU-2026:4558-1	Not reported

[Debian bug #1142837]

Notes

[trixie] libsoup3: Minor issue [bookworm] libsoup3: Minor issue, credentials leak between trusted proxies [trixie] libsoup2.4: Minor issue [bookworm] libsoup2.4: Minor issue, credentials leak between trusted proxies

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
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
[gir1.2-soup-3.0]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · amd64 · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · arm64 · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
[libsoup2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
[libsoup2.4-common]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · all · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · all · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
[libsoup2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
[libsoup2.4-doc]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · all · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · all · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
[libsoup2.4-tests]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
[libsoup-3.0-0]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · amd64 · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · arm64 · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
[libsoup-3.0-common]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · all · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · all · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
[libsoup-3.0-dev]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · amd64 · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · arm64 · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
[libsoup-3.0-doc]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · all · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · all · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
[libsoup-3.0-tests]Affected
Source package: [libsoup3]
Details (2)
- 3.2.3-0+deb12u2 · amd64 · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
- 3.2.3-0+deb12u2 · arm64 · bookworm
  Affected
  nvd · libsoup3 · debian · bookworm; nvd · libsoup3 · debian · 12
[libsoup-gnome2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
[libsoup-gnome2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · libsoup2.4 · debian · 12
- 2.74.3-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsoup2.4 · debian · bookworm; nvd · 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
  nvd · libsoup2.4 · debian · 13
- 2.74.3-10.1 · arm64 · trixie
  Affected
  nvd · libsoup2.4 · debian · 13
[gir1.2-soup-3.0]Affected
Source package: [libsoup3]
Details (2)
- 3.6.5-3 · amd64 · trixie
  Affected
  nvd · libsoup3 · debian · 13
- 3.6.5-3 · arm64 · trixie
  Affected
  nvd · libsoup3 · debian · 13
[libsoup-2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · amd64 · trixie
  Affected
  nvd · libsoup2.4 · debian · 13
- 2.74.3-10.1 · arm64 · trixie
  Affected
  nvd · libsoup2.4 · debian · 13
[libsoup2.4-common]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · all · trixie
  Affected
  nvd · libsoup2.4 · debian · 13
- 2.74.3-10.1 · all · trixie
  Affected
  nvd · libsoup2.4 · debian · 13
[libsoup2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · amd64 · trixie
  Affected
  nvd · libsoup2.4 · debian · 13
- 2.74.3-10.1 · arm64 · trixie
  Affected
  nvd · libsoup2.4 · debian · 13
[libsoup2.4-doc]Affected
Source package: [libsoup2.4]
Details (2)
- 2.74.3-10.1 · all · trixie
  Affected
  nvd · libsoup2.4 · debian · 13
- 2.74.3-10.1 · all · trixie
  Affected
  nvd · libsoup2.4 · debian · 13

Next results

Observed: Oct 23, 2026, 9:43:37 PM UTC

References

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