Medium · CVSS 4.3CVE-2026-28296

Gvfs: ftp gvfs backend: arbitrary ftp command injection via crlf sequences in file pathsCVE-2026-28296

Answer in brief

CVE-2026-28296 records a Medium severity (CVSS 4.3) vulnerability in Gvfs: ftp gvfs backend: arbitrary ftp command injection via crlf sequences in file paths. The current sources do not mark it as known exploited. The current feed maps Red Hat/gvfs (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Feb 26, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 4.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/gvfs (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Red Hat/gvfsgeneric	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Red Hat/gvfs.
Review the reported fix. Source-reported workaround: To reduce the risk associated with this vulnerability, users should avoid connecting to untrusted FTP servers or opening FTP links from unverified sources. Implementing network-level restrictions, such as firewall rules, to limit outbound connections to only trusted FTP servers can further mitigate potential exposure. If the GVfs FTP backend is not essential for daily operations, consider removing or disabling packages that provide this functionality, though this action may affect other desktop environment features that rely on GVfs for FTP access.

Evidence timeline and material changes

Published upstream
Feb 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 5, 2026

Sources and claim methodology

Upstream source description

A flaw was found in the FTP GVfs backend. A remote attacker could exploit this input validation vulnerability by supplying specially crafted file paths containing carriage return and line feed (CRLF) sequences. These unsanitized sequences allow the attacker to terminate intended FTP commands and inject arbitrary FTP commands, potentially leading to arbitrary code execution or other severe impacts.

Quoted source text, attributed separately from HOL analysis.

Package

Affected range

Fixed version

Red Hat/gvfsgeneric

Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Red Hat/gvfs.

Review the reported fix. Source-reported workaround: To reduce the risk associated with this vulnerability, users should avoid connecting to untrusted FTP servers or opening FTP links from unverified sources. Implementing network-level restrictions, such as firewall rules, to limit outbound connections to only trusted FTP servers can further mitigate potential exposure. If the GVfs FTP backend is not essential for daily operations, consider removing or disabling packages that provide this functionality, though this action may affect other desktop environment features that rely on GVfs for FTP access.

Sources and claim methodology

Upstream source description

Quoted source text, attributed separately from HOL analysis.