CVE-2026-55868

Publication date 22 July 2026

Last updated 15 September 2026

Ubuntu priority

Why this priority?

Description

[Encryption State Machine Downgrade]

Status

Show unmaintained releases

Package	Ubuntu Release	Status
srt	26.04 LTS resolute	Fixed 1.5.4-3ubuntu0.1~esm1
	24.04 LTS noble	Fixed 1.5.3-1ubuntu0.1~esm1
	22.04 LTS jammy	Fixed 1.4.4-4ubuntu0.1~esm1
	20.04 LTS focal	Fixed 1.4.0-1ubuntu0.1~esm1

How can I get the fixes?
What do statuses mean?

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References

MITRE
NVD
Launchpad
Debian

Related Ubuntu Security Notices (USN)

USN-8764-1
SRT vulnerabilities
15 September 2026

Other references

https://www.cve.org/CVERecord?id=CVE-2026-55868
https://github.com/Haivision/srt/security/advisories/GHSA-4mc6-qmpp-g7gw
https://github.com/Haivision/srt/pull/3345