Vulnerability · Published Mar 19, 2026 · Assigned by redhat
CVE-2026-2369Libsoup: libsoup: buffer overread due to integer underflow when handling zero-length resources
Medium 6.5
In plain English
A medium-severity security flaw in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 61.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libsoup2.4 | no fix listed | DEBIAN-CVE-2026-2369 |
| Debian:13 | libsoup2.4 | no fix listed | DEBIAN-CVE-2026-2369 |
| Debian:12 | libsoup3 | no fix listed | DEBIAN-CVE-2026-2369 |
| Debian:13 | libsoup3 | no fix listed | DEBIAN-CVE-2026-2369 |
| Ubuntu:22.04:LTS | libsoup2.4 | 2.74.2-3ubuntu0.7 | USN-8523-1 |
| Ubuntu:22.04:LTS | libsoup2.4 | 2.74.2-3ubuntu0.7 | UBUNTU-CVE-2026-2369 |
| Ubuntu:24.04:LTS | libsoup2.4 | 2.74.3-6ubuntu1.7 | UBUNTU-CVE-2026-2369 |
| Ubuntu:24.04:LTS | libsoup2.4 | 2.74.3-6ubuntu1.7 | USN-8523-1 |
| Ubuntu:25.10 | libsoup2.4 | 2.74.3-10.1ubuntu4.1 | USN-8523-1 |
| Ubuntu:25.10 | libsoup2.4 | 2.74.3-10.1ubuntu4.1 | UBUNTU-CVE-2026-2369 |
| Ubuntu:26.10 | libsoup2.4 | no fix listed | UBUNTU-CVE-2026-2369 |
| Ubuntu:24.04:LTS | libsoup3 | no fix listed | UBUNTU-CVE-2026-2369 |
| Ubuntu:25.10 | libsoup3 | no fix listed | UBUNTU-CVE-2026-2369 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
Weakness: CWE-191 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
References
- https://access.redhat.com/security/cve/CVE-2026-2369 vdb-entry, x_refsource_REDHAT
- RHBZ#2439091 issue-tracking, x_refsource_REDHAT
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/498