CVE-2026-22591

Fast DDS DDSSQLFilter Recursive Parser Stack Exhaustion (Remote DoS)

HIGH

7.5

CVSS Score

Published: September 9, 2026 at 03:47 PM UTC

Updated: September 14, 2026 at 02:17 PM UTC

1 product affected across 1 vendorFast DDS

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Severity

HIGH7.5

Exploit prediction

EPSS 0.5%

SSVC

PoC

Description

eprosima Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). Prior to versions 2.6.12, 2.14.6, 3.2.4, and 3.4.3, Fast DDS’s implementation of SQL‑based content filtering (DDSSQLFilter) allows any participant in a DDS domain to remotely crash other Fast DDS participants by sending a single crafted SEDP `DATA` submessage whose `PID_CONTENT_FILTER_PROPERTY.filterExpression` contains a deeply nested filter expression. Versions 2.6.12, 2.14.6, 3.2.4, and 3.4.3 fix the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fast DDS · Eprosima

60%

v < 2.14.6v < 2.6.12v < 3.2.4v < 3.4.3

Affected range stops below 2.14.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.2.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.4.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM

Source: cverecord

https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-7577-rf2r-j88m

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-400CWE-674

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