NVD / CVE Program· CNA redhat

CVE-2026-57966: Spice-vdagent: path traversal in file transfer via unsanitized filename

MediumCVSS 4.4 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 17/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.12% (FIRST EPSS).
Someone with local access to the system can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
Fixed version: spice-vdagent (Debian:12) 0.22.1-3+deb12u1; spice-vdagent (Debian:14) 0.23.0-3; spice-vdagent (openSUSE:Leap 16.0) 0.22.1-160000.3.1.

Low priority for now. Upgrade to spice-vdagent (Debian:12) 0.22.1-3+deb12u1; spice-vdagent (Debian:14) 0.23.0-3; spice-vdagent (openSUSE:Leap 16.0) 0.22.1-160000.3.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A path traversal vulnerability was found in spice-vdagent. This flaw allows a malicious or compromised SPICE host to write arbitrary files to any location on the guest operating system. This occurs because the filename provided by the SPICE host during file transfers is not properly sanitized before being used. An attacker could exploit this to write to sensitive locations with the privileges of the spice-vdagent process, typically the logged-in user. This issue requires the SPICE host to be untrusted or compromised for exploitation.

Published: Jun 29, 2026
Updated: Nov 5, 2026
EPSS: 0.1% · 2th percentile
CWE: CWE-22

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 17 / 40 · 4.4 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.1%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · redhat: 4.4; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
redhat	enterprise linux	cpe:2.3:o:redhat:enterprise_linux
spice-space	spice-vdagent	cpe:2.3:a:spice-space:spice-vdagent

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

Red Hat Red Hat Enterprise Linux 10
- all versionsaffected
Red Hat Red Hat Enterprise Linux 6
- all versionsaffected
Red Hat Red Hat Enterprise Linux 7
- all versionsaffected
Red Hat Red Hat Enterprise Linux 8
- all versionsaffected
- all versionsaffected
Red Hat Red Hat Enterprise Linux 9
- all versionsaffected

Affected versions · NVD (6)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

redhat enterprise linux10.0
redhat enterprise linux6.0
redhat enterprise linux7.0
redhat enterprise linux8.0
redhat enterprise linux9.0
spice-space spice-vdagentall versions

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	spice-vdagent	before 0.22.1-3+deb12u1	0.22.1-3+deb12u1
Debian:13	spice-vdagent	from 0	—
Debian:14	spice-vdagent	before 0.23.0-3	0.23.0-3
openSUSE:Leap 16.0	spice-vdagent	before 0.22.1-160000.3.1	0.22.1-160000.3.1
openSUSE:Tumbleweed	spice-vdagent	before 0.23.0-4.1	0.23.0-4.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS	spice-vdagent	before 0.21.0-150300.3.6.1	0.21.0-150300.3.6.1
SUSE:Linux Enterprise Module for Desktop Applications 15 SP7	spice-vdagent	before 0.22.1-150500.4.3.1	0.22.1-150500.4.3.1
SUSE:Linux Enterprise Server 16.0	spice-vdagent	before 0.22.1-160000.3.1	0.22.1-160000.3.1
SUSE:Linux Enterprise Server for SAP Applications 12 SP5	spice-vdagent	before 0.16.0-8.13.2	0.16.0-8.13.2

Same product

redhat: all records

Other highest-scoring records for the same primary product.

CVE-2015-3246libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd…KEV
62This week
CVE-2023-50387Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of…
60This week
CVE-2017-5456A mechanism to bypass file system access protections in the sandbox using the file system request constructor through an IPC message.
40Plan

Published before and after this one in the same product

← EarlierCVE-2026-11820Jun 23, 2026 · Community.general: community.general nexmo — api credentials exposed in get url query string[security] community.general nexmo — api credentials exposed in get…
26Monitor
← EarlierCVE-2026-57965Jun 29, 2026 · Spice-vdagent: integer overflow in udscs_write() leading to heap buffer overflow
20Monitor
Later →CVE-2026-13601Jun 29, 2026 · Yelp: yelp-xsl: overly permissive content security policy in yelp allows host file disclosure from flatpak applications
26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
debian:spice-vdagent	0.22.1-3+deb12u1 · Debian:12	Package registry (OSV)
opensuse:spice-vdagent	0.23.0-4.1 · openSUSE:Tumbleweed	Package registry (OSV)
suse:spice-vdagent	0.22.1-160000.3.1 · SUSE:Linux Enterprise Server 16.0	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Ashish Kunwar

Not on record for this CVE: EPSS history · patch commit or PR link · variant or chain candidate · public bounty program.

Technical details

Attack conditions

Someone with local access to the system can trigger it.
Administrator privileges are required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: high · data or configuration can be modified
Availability: none

Attack vector: Local
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: High
Availability impact: None

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

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

nvd-secondary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:45 PM UTC

For records you follow, these changes also arrive as notifications. →

References

access.redhat.com/security/cve/CVE-2026-57966

Show all references (1 more)

bugzilla.redhat.com/show_bug.cgi?id=2493582

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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