REDHAT-BUG-2499922: Medium severity libsoup vulnerability

Published Jul 14, 2026
·
Updated

A flaw in libsoup’s permessage-deflate WebSocket extension allows a remote attacker to cause a Denial of Service via memory exhaustion. The internal inflate() loop resizes its buffer dynamically without enforcing an upper limit during decompression. Because size checks are either performed only on the compressed wire-payload or executed too late (after inflation completes), a small decompression bomb can trigger an immediate Out-of-Memory (OOM) crash on both client and server applications.

Affected Software

1 affected component
libsoup

Event History

Jul 14, 2026
Data Sourced
via Red Hat·09:43 AM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2499922?

The severity of REDHAT-BUG-2499922 is classified as medium (4).

2

What type of vulnerability is REDHAT-BUG-2499922?

REDHAT-BUG-2499922 is a Denial of Service vulnerability caused by memory exhaustion in libsoup’s WebSocket extension.

3

How does REDHAT-BUG-2499922 allow for a Denial of Service?

REHAT-BUG-2499922 allows for a Denial of Service by enabling a remote attacker to exploit the internal `inflate()` loop that resizes buffers without an upper limit.

4

How do I fix REDHAT-BUG-2499922?

To fix REDHAT-BUG-2499922, update libsoup to the latest version that contains the security patch addressing this vulnerability.

5

When was REDHAT-BUG-2499922 published?

REDHAT-BUG-2499922 was published on July 14, 2026.

Contact

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