CVE-2026-2369

Publication date 19 March 2026

Last updated 9 July 2026

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libsoup2.4	26.04 LTS resolute	Fixed 2.74.3-10.1ubuntu5+esm1
	25.10 questing	Fixed 2.74.3-10.1ubuntu4.1
	24.04 LTS noble	Fixed 2.74.3-6ubuntu1.7
	22.04 LTS jammy	Fixed 2.74.2-3ubuntu0.7
	20.04 LTS focal	Fixed 2.70.0-1ubuntu0.5+esm2
	18.04 LTS bionic	Fixed 2.62.1-1ubuntu0.4+esm7
	16.04 LTS xenial	Not affected
libsoup3	26.04 LTS resolute	Not affected
	25.10 questing	Needs evaluation
	24.04 LTS noble	Needs evaluation
	22.04 LTS jammy	Needs evaluation

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libsoup2.4	Upstream: b91bbd7
libsoup3	Upstream: b91bbd7 Upstream: af4bde9

Severity score breakdown

CVSS version: CVSS v3.0

Base score 6.5 · Medium

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	Low
Integrity impact	None
Availability impact	Low

Scores

Parameter	Value
Base score	6.5 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

References

Related Ubuntu Security Notices (USN)

USN-8523-1
libsoup vulnerabilities
9 July 2026

Other references

https://www.cve.org/CVERecord?id=CVE-2026-2369