CVE catalog
CVE-2026-1539
libsoup vulnerabilities
- Severity
- Medium · CVSS 5.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.27% · Oct 27, 2026
A flaw was found in the libsoup HTTP library that can cause proxy authentication credentials to be sent to unintended destinations. When handling HTTP redirects, libsoup removes the Authorization header but does not remove the Proxy-Authorization header if the request is redirected to a different host. As a result, sensitive proxy credentials may be leaked to third-party servers. Applications using libsoup for HTTP communication may unintentionally expose proxy authentication data.
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 |
| Ubuntu | libsoup2.4 | noble | Not reported | vulnerable |
| Ubuntu | libsoup3 | noble | Not reported | vulnerable |
| Ubuntu | libsoup3 | noble | 3.4.4-5ubuntu0.7 | fixed |
| Ubuntu | gir1.2-soup-3.0 | noble | 3.4.4-5ubuntu0.7 | fixed |
| Ubuntu | libsoup-3.0-0 | noble | 3.4.4-5ubuntu0.7 | fixed |
| Ubuntu | libsoup-3.0-common | noble | 3.4.4-5ubuntu0.7 | fixed |
| Ubuntu | libsoup-3.0-dev | noble | 3.4.4-5ubuntu0.7 | fixed |
| Ubuntu | libsoup-3.0-doc | noble | 3.4.4-5ubuntu0.7 | fixed |
| Ubuntu | libsoup-3.0-tests | noble | 3.4.4-5ubuntu0.7 | fixed |
| Ubuntu | libsoup2.4 | noble | 2.74.3-6ubuntu1.8 | fixed |
| Ubuntu | libsoup3 | noble | 3.4.4-5ubuntu0.8 | fixed |
| Ubuntu | gir1.2-soup-2.4 | noble | 2.74.3-6ubuntu1.8 | fixed |
| Ubuntu | gir1.2-soup-3.0 | noble | 3.4.4-5ubuntu0.8 | fixed |
| Ubuntu | libsoup-2.4-1 | noble | 2.74.3-6ubuntu1.8 | fixed |
| Ubuntu | libsoup-3.0-0 | noble | 3.4.4-5ubuntu0.8 | fixed |
| Ubuntu | libsoup-3.0-common | noble | 3.4.4-5ubuntu0.8 | fixed |
| Ubuntu | libsoup-3.0-dev | noble | 3.4.4-5ubuntu0.8 | fixed |
| Ubuntu | libsoup-3.0-doc | noble | 3.4.4-5ubuntu0.8 | fixed |
| Ubuntu | libsoup-3.0-tests | noble | 3.4.4-5ubuntu0.8 | fixed |
| Ubuntu | libsoup-gnome-2.4-1 | noble | 2.74.3-6ubuntu1.8 | fixed |
| Ubuntu | libsoup-gnome2.4-dev | noble | 2.74.3-6ubuntu1.8 | fixed |
| Ubuntu | libsoup2.4-common | noble | 2.74.3-6ubuntu1.8 | fixed |
| Ubuntu | libsoup2.4-dev | noble | 2.74.3-6ubuntu1.8 | fixed |
| Ubuntu | libsoup2.4-doc | noble | 2.74.3-6ubuntu1.8 | fixed |
| Ubuntu | libsoup2.4-tests | noble | 2.74.3-6ubuntu1.8 | fixed |
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 | [1126628] |
| Debian | libsoup3 | source | forky | 3.6.5-8 | not yet assigned | Not reported | [1126628] |
| Debian | libsoup3 | source | trixie | (unfixed) | not yet assigned | Not reported | [1126628] |
| Debian | libsoup3 | source | bookworm | (unfixed) | not yet assigned | Not reported | [1126628] |
| 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 |
| Ubuntu | libsoup3 | deb | noble | 3.4.4-5ubuntu0.7 | Not reported | Not reported | Not reported |
| Ubuntu | gir1.2-soup-3.0 | deb | noble | 3.4.4-5ubuntu0.7 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-0 | deb | noble | 3.4.4-5ubuntu0.7 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-common | deb | noble | 3.4.4-5ubuntu0.7 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-dev | deb | noble | 3.4.4-5ubuntu0.7 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-doc | deb | noble | 3.4.4-5ubuntu0.7 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-tests | deb | noble | 3.4.4-5ubuntu0.7 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup2.4 | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup3 | deb | noble | 3.4.4-5ubuntu0.8 | Not reported | Not reported | Not reported |
| Ubuntu | gir1.2-soup-2.4 | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
| Ubuntu | gir1.2-soup-3.0 | deb | noble | 3.4.4-5ubuntu0.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-2.4-1 | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-0 | deb | noble | 3.4.4-5ubuntu0.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-common | deb | noble | 3.4.4-5ubuntu0.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-dev | deb | noble | 3.4.4-5ubuntu0.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-doc | deb | noble | 3.4.4-5ubuntu0.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-3.0-tests | deb | noble | 3.4.4-5ubuntu0.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-gnome-2.4-1 | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup-gnome2.4-dev | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup2.4-common | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup2.4-dev | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup2.4-doc | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
| Ubuntu | libsoup2.4-tests | deb | noble | 2.74.3-6ubuntu1.8 | Not reported | Not reported | Not reported |
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 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
2.74.3-1+deb12u1· arm64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
- [gir1.2-soup-3.0]Affected
Source package: [libsoup3]
Details (2)
3.2.3-0+deb12u2· amd64 · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
3.2.3-0+deb12u2· arm64 · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
- [libsoup2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-1+deb12u1· amd64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
2.74.3-1+deb12u1· arm64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
- [libsoup2.4-common]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-1+deb12u1· all · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
2.74.3-1+deb12u1· all · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
- [libsoup2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-1+deb12u1· amd64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
2.74.3-1+deb12u1· arm64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
- [libsoup2.4-doc]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-1+deb12u1· all · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
2.74.3-1+deb12u1· all · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
- [libsoup2.4-tests]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-1+deb12u1· amd64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
2.74.3-1+deb12u1· arm64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
- [libsoup-3.0-0]Affected
Source package: [libsoup3]
Details (2)
3.2.3-0+deb12u2· amd64 · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
3.2.3-0+deb12u2· arm64 · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
- [libsoup-3.0-common]Affected
Source package: [libsoup3]
Details (2)
3.2.3-0+deb12u2· all · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
3.2.3-0+deb12u2· all · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
- [libsoup-3.0-dev]Affected
Source package: [libsoup3]
Details (2)
3.2.3-0+deb12u2· amd64 · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
3.2.3-0+deb12u2· arm64 · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
- [libsoup-3.0-doc]Affected
Source package: [libsoup3]
Details (2)
3.2.3-0+deb12u2· all · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
3.2.3-0+deb12u2· all · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
- [libsoup-3.0-tests]Affected
Source package: [libsoup3]
Details (2)
3.2.3-0+deb12u2· amd64 · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
3.2.3-0+deb12u2· arm64 · bookwormAffected
usn · libsoup3 · debian · bookworm; usn · libsoup3 · debian · 12
- [libsoup-gnome2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-1+deb12u1· amd64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
2.74.3-1+deb12u1· arm64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
- [libsoup-gnome2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-1+deb12u1· amd64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · libsoup2.4 · debian · 12
2.74.3-1+deb12u1· arm64 · bookwormAffected
usn · libsoup2.4 · debian · bookworm; usn · 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 · trixieAffected
usn · libsoup2.4 · debian · 13
2.74.3-10.1· arm64 · trixieAffected
usn · libsoup2.4 · debian · 13
- [gir1.2-soup-3.0]Affected
Source package: [libsoup3]
Details (2)
3.6.5-3· amd64 · trixieAffected
usn · libsoup3 · debian · 13
3.6.5-3· arm64 · trixieAffected
usn · libsoup3 · debian · 13
- [libsoup-2.4-1]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-10.1· amd64 · trixieAffected
usn · libsoup2.4 · debian · 13
2.74.3-10.1· arm64 · trixieAffected
usn · libsoup2.4 · debian · 13
- [libsoup2.4-common]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-10.1· all · trixieAffected
usn · libsoup2.4 · debian · 13
2.74.3-10.1· all · trixieAffected
usn · libsoup2.4 · debian · 13
- [libsoup2.4-dev]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-10.1· amd64 · trixieAffected
usn · libsoup2.4 · debian · 13
2.74.3-10.1· arm64 · trixieAffected
usn · libsoup2.4 · debian · 13
- [libsoup2.4-doc]Affected
Source package: [libsoup2.4]
Details (2)
2.74.3-10.1· all · trixieAffected
usn · libsoup2.4 · debian · 13
2.74.3-10.1· all · trixieAffected
usn · libsoup2.4 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10276-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-1539]
- [https://security-tracker.debian.org/tracker/CVE-2026-1539]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1539.json]
- [https://ubuntu.com/security/notices/USN-8020-1]
- [https://ubuntu.com/security/notices/USN-8780-1]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]