CVE-2025-2784 json
Libsoup: heap buffer over-read in `skip_insignificant_space` when sniffing content
published 2025-04-03 19 mo ago modified 2026-11-05 3 d ago also EUVD-2025-9569 , JLSEC-2026-1280
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
A flaw was found in libsoup. The package is vulnerable to a heap buffer over-read when sniffing content via the skip_insight_whitespace() function. Libsoup clients may read one byte out-of-bounds in response to a crafted HTTP response by an HTTP server.
Patch / fix
- Red Hat Red Hat Enterprise Linux 10 0:3.6.5-3.el10_0
- Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.62.2-9.el7_9
- Red Hat Red Hat Enterprise Linux 8 0:2.62.3-9.el8_10
- Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:2.62.3-1.el8_2.5
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.62.3-2.el8_4.5
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.62.3-2.el8_6.5
- Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:2.62.3-2.el8_6.5
- Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:2.62.3-2.el8_6.5
- Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support 0:2.62.3-3.el8_8.5
- Red Hat Red Hat Enterprise Linux 9 0:2.72.0-10.el9_6.2
- Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:2.72.0-8.el9_0.5
- Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support 0:2.72.0-8.el9_2.5
- Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:2.72.0-8.el9_4.5
- libsoup3 Debian 12 3.2.3-0+deb12u1
- libsoup3 Debian 13 3.6.5-1
- libsoup2.4 Debian 13 2.74.3-10
debian advisories DEBIAN-CVE-2025-2784
- libsoup3 Ubuntu 24.04 LTS 3.4.4-5ubuntu0.2
- libsoup2.4 Ubuntu 20.04 LTS 2.70.0-1ubuntu0.2
- libsoup2.4 Ubuntu 22.04 LTS 2.74.2-3ubuntu0.2
- libsoup2.4 Ubuntu 24.04 LTS 2.74.3-6ubuntu1.2
- libsoup3 Ubuntu Pro 22.04 LTS 3.0.7-0ubuntu1+esm2
- libsoup2.4 Ubuntu Pro 16.04 LTS 2.52.2-1ubuntu0.3+esm4
- libsoup2.4 Ubuntu Pro 18.04 LTS 2.62.1-1ubuntu0.4+esm5
ubuntu advisories UBUNTU-CVE-2025-2784
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- libsoup RHEL 8 2.62.3-9.el8_10
- libsoup RHEL 9 2.72.0-10.el9_6.2
- libsoup3 RHEL 10.0 3.6.5-3.el10_0
- libsoup RHEL 7 ELS 2.62.2-9.el7_9
- libsoup RHEL 7 ELS 2.62.2-6.el7_9
- libsoup RHEL 8.4 AUS 2.62.3-2.el8_4.5
- libsoup RHEL 8.6 TUS, RHEL 8.6 E4S, RHEL 8.6 AUS 2.62.3-2.el8_6.5
- libsoup RHEL 8.2 AUS 2.62.3-1.el8_2.5
red hat advisories RHSA-2025:21657RHSA-2025:9179RHSA-2025:8663RHSA-2025:8482RHSA-2025:8480RHSA-2025:8481
- libsoup Linux Micro 6.1 3.4.4-slfo.1.1_3.1
- libsoup SLE Module for Basesystem 15 SP7, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 3.4.4-150600.3.7.1
- libsoup2 SLE Module for Basesystem 15 SP7, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.74.3-150600.4.6.1
- libsoup Linux Micro 6.0 3.4.2-6.1
- libsoup SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +2 more 2.68.4-150200.4.6.1
- libsoup SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +7 more 3.0.4-150400.3.7.1
- libsoup2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +10 more 2.74.2-150400.3.6.1
- libsoup SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.62.2-5.12.1
suse advisories SUSE-SU-2025:20446-1SUSE-SU-2025:01504-1SUSE-SU-2025:01503-1SUSE-SU-2025:20375-1SUSE-SU-2025:1519-1SUSE-SU-2025:1518-1
- libsoup2 openSUSE Tumbleweed 2.74.3-8.1
opensuse advisories openSUSE-SU-2025:15018-1
- libsoup AlmaLinux 9 2.72.0-10.el9_6.2
- libsoup AlmaLinux 8 2.62.3-9.el8_10
- libsoup3 AlmaLinux 10 3.6.5-3.el10_0
almalinux advisories ALSA-2025:8126ALSA-2025:8132ALSA-2025:7505
- libsoup Rocky Linux 9 2.72.0-10.el9_6.2
- libsoup Rocky Linux 8 2.62.3-9.el8_10
rocky linux advisories RLSA-2025:8126RLSA-2025:8132
- libsoup CBL-Mariner 2.0 3.0.4-6
- libsoup Azure Linux 3.0 3.4.4-6
azure linux advisories AZL-59535AZL-59544
Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2025-2784 updated cvss 7.0
libsoup: Heap buffer over-read in `skip_insignificant_space` when sniffing content
-
Red Hat Enterprise Linux 6 libsoupaffected: workaround, no fix planned “Currently no mitigation is available for this vulnerability.”
-
Red Hat Enterprise Linux AppStream (v. 8) libsoup-devel 2.62.3-9.el8_10, libsoup-debuginfo 2.62.3-9.el8_10, libsoup-debugsource 2.62.3-9.el8_10fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8132
-
Red Hat Enterprise Linux AppStream (v. 9) libsoup 2.72.0-10.el9_6.2fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8126
-
Red Hat Enterprise Linux AppStream (v. 10) libsoup3 3.6.5-3.el10_0fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:7505
-
Red Hat Enterprise Linux AppStream AUS (v. 8.2) libsoup-devel 2.62.3-1.el8_2.5, libsoup-debuginfo 2.62.3-1.el8_2.5, libsoup-debugsource 2.62.3-1.el8_2.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8480
-
Red Hat Enterprise Linux AppStream AUS (v.8.4) libsoup-devel 2.62.3-2.el8_4.5, libsoup-debuginfo 2.62.3-2.el8_4.5, libsoup-debugsource 2.62.3-2.el8_4.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8663
-
Red Hat Enterprise Linux AppStream AUS (v.8.6) libsoup-devel 2.62.3-2.el8_6.5, libsoup-debuginfo 2.62.3-2.el8_6.5, libsoup-debugsource 2.62.3-2.el8_6.5 Red Hat Enterprise Linux AppStream E4S (v.8.6) libsoup-devel 2.62.3-2.el8_6.5, libsoup-debuginfo 2.62.3-2.el8_6.5, libsoup-debugsource 2.62.3-2.el8_6.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8482
-
Red Hat Enterprise Linux AppStream E4S (v.9.0) libsoup 2.72.0-8.el9_0.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8481
show 12 moreshow fewer
-
Red Hat Enterprise Linux AppStream EUS (v.8.8) libsoup-devel 2.62.3-3.el8_8.5, libsoup-debuginfo 2.62.3-3.el8_8.5, libsoup-debugsource 2.62.3-3.el8_8.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8252
-
Red Hat Enterprise Linux AppStream EUS (v.9.2) libsoup 2.72.0-8.el9_2.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8140
-
Red Hat Enterprise Linux AppStream EUS (v.9.4) libsoup 2.72.0-8.el9_4.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8139
-
Red Hat Enterprise Linux AppStream TUS (v.8.6) libsoup-devel 2.62.3-2.el8_6.5, libsoup-debuginfo 2.62.3-2.el8_6.5, libsoup-debugsource 2.62.3-2.el8_6.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8482
-
Red Hat Enterprise Linux BaseOS (v. 8) libsoup 2.62.3-9.el8_10fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8132
-
Red Hat Enterprise Linux BaseOS AUS (v. 8.2) libsoup 2.62.3-1.el8_2.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8480
-
Red Hat Enterprise Linux BaseOS AUS (v.8.4) libsoup 2.62.3-2.el8_4.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8663
-
Red Hat Enterprise Linux BaseOS AUS (v.8.6) libsoup 2.62.3-2.el8_6.5 Red Hat Enterprise Linux BaseOS E4S (v.8.6) libsoup 2.62.3-2.el8_6.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8482
-
Red Hat Enterprise Linux BaseOS EUS (v.8.8) libsoup 2.62.3-3.el8_8.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8252
-
Red Hat Enterprise Linux BaseOS TUS (v.8.6) libsoup 2.62.3-2.el8_6.5fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:8482
-
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libsoup3-doc 3.6.5-3.el10_0fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:7505
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Red Hat Enterprise Linux Server (v. 7 ELS) libsoup 2.62.2-9.el7_9fixed: vendor fix “Currently no mitigation is available for this vulnerability.” RHSA-2025:21657
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- gitlab.gnome.org https://gitlab.gnome.org/GNOME/libsoup/-/issues/422 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| julia | Soup3_jll | all versions |
no fix listed |
Affected products
- Red Hat Red Hat Enterprise Linux 10
- Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service
- Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
- Red Hat Red Hat Enterprise Linux 9
- Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support
- Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
- Red Hat Red Hat Enterprise Linux 6
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
gitlab.gnome.org
/GNOME/libsoup/-/issues/422
exploit, issue-tracking, web
-
access.redhat.com
/errata/RHSA-2025:21657
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2025:7505
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8126
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8132
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8139
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8140
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8252
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8480
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8481
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8482
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/errata/RHSA-2025:8663
vendor-advisory, third-party-advisory, web
-
access.redhat.com
/security/cve/CVE-2025-2784
vdb-entry, third-party-advisory, web
-
bugzilla.redhat.com
/show_bug.cgi?id=2354669
issue-tracking, third-party-advisory, web
-
lists.debian.org
/debian-lts-announce/2025/04/msg00036.html
web
-
access.redhat.com
/errata/RHSA-2025:9179
web
Sources
- CVE List CVE-2025-2784
- NVD CVE-2025-2784
- OSV JLSEC-2026-1280
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.