Skip to content
Noroxi
NVD / CVE Program· CNA VulnCheck

CVE-2026-54371: attr < 2.6.0 Symlink Traversal Privilege Escalation via getfattr/setfattr

HighCVSS 8.4 · v4.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 33/100)

  • 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: 0.14% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: attr project attr 2.6.0; azl3 acl 2.3.1-2 on Azure Linux 3.0 2.4.0-1; azl3 attr 2.6.0-1 on Azure Linux 3.0 2.6.0-1.

Low priority for now. Upgrade to attr project attr 2.6.0; azl3 acl 2.3.1-2 on Azure Linux 3.0 2.4.0-1; azl3 attr 2.6.0-1 on Azure Linux 3.0 2.6.0-1 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

attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory hierarchy traversal. Attackers who control a pathname component can redirect getfattr and setfattr operations to arbitrary files by substituting a symlink, leading to local privilege escalation when getfattr or setfattr is invoked by a privileged process over an attacker-controlled path.

Published
Jun 29, 2026
Updated
Oct 25, 2026
EPSS
0.1% · 3th percentile

Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
33 / 40 · 8.4 / 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 · VulnCheck
8.4
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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.

Follow CVE-2026-54371

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits every 10 minutes on paid plans, on the hour on the free plan.

Your free account also gets you

  • CVE alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools, at most 30 a day (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for attr project records
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.

We use this product, ask for help

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.

VendorProduct
enterprise linux10.2
enterprise linux8
enterprise linux9
cert manager1.19
discovery2
hummingbird1
rhui5
enterprise linux6
enterprise linux7
openshift4

Versions reported by the vendor

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

  • attr project attr

    • before 2.6.0affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:10attrbefore 2.6.0-1.el10_22.6.0-1.el10_2
AlmaLinux:10libattrbefore 2.6.0-1.el10_22.6.0-1.el10_2
AlmaLinux:10libattr-develbefore 2.6.0-1.el10_22.6.0-1.el10_2
AlmaLinux:8attrbefore 2.6.0-1.el8_102.6.0-1.el8_10
AlmaLinux:8libattrbefore 2.6.0-1.el8_102.6.0-1.el8_10
AlmaLinux:8libattr-develbefore 2.6.0-1.el8_102.6.0-1.el8_10
AlmaLinux:9attrbefore 2.6.0-1.el9_82.6.0-1.el9_8
AlmaLinux:9libattrbefore 2.6.0-1.el9_82.6.0-1.el9_8
AlmaLinux:9libattr-develbefore 2.6.0-1.el9_82.6.0-1.el9_8
Debian:12attrfrom 0—
Debian:14attrbefore 1:2.6.0-11:2.6.0-1
openSUSE:Leap 16.0aclbefore 2.4.0-160000.1.12.4.0-160000.1.1
openSUSE:Leap 16.0attrbefore 2.6.0-160000.1.12.6.0-160000.1.1
openSUSE:Tumbleweedaclbefore 2.4.0-1.12.4.0-1.1
Red Hat:enterprise_linux:10.2attrbefore 0:2.6.0-1.el10_20:2.6.0-1.el10_2
Red Hat:enterprise_linux:10.2attr-debuginfobefore 0:2.6.0-1.el10_20:2.6.0-1.el10_2
Red Hat:enterprise_linux:10.2attr-debugsourcebefore 0:2.6.0-1.el10_20:2.6.0-1.el10_2
Red Hat:enterprise_linux:10.2libattrbefore 0:2.6.0-1.el10_20:2.6.0-1.el10_2
Red Hat:enterprise_linux:10.2libattr-debuginfobefore 0:2.6.0-1.el10_20:2.6.0-1.el10_2
Red Hat:enterprise_linux:10.2libattr-develbefore 0:2.6.0-1.el10_20:2.6.0-1.el10_2
Red Hat:enterprise_linux:8::baseosattrbefore 0:2.6.0-1.el8_100:2.6.0-1.el8_10
Red Hat:enterprise_linux:8::baseosattr-debuginfobefore 0:2.6.0-1.el8_100:2.6.0-1.el8_10
Red Hat:enterprise_linux:8::baseosattr-debugsourcebefore 0:2.6.0-1.el8_100:2.6.0-1.el8_10
Red Hat:enterprise_linux:8::baseoslibattrbefore 0:2.6.0-1.el8_100:2.6.0-1.el8_10

+18

Remediation

Which version to upgrade to

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

Product / packageFixed versionSource
attr project attr2.6.0Vendor (CNA)
azl3 acl 2.3.1-2 on Azure Linux 3.02.4.0-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 attr 2.6.0-1 on Azure Linux 3.02.6.0-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
almalinux:attr2.6.0-1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:libattr2.6.0-1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:libattr-devel2.6.0-1.el8_10 · AlmaLinux:8Package registry (OSV)
debian:attr1:2.6.0-1 · Debian:14Package registry (OSV)
opensuse:acl2.4.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:attr2.6.0-160000.1.1 · openSUSE:Leap 16.0Package registry (OSV)
red hat:attr0:2.6.0-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:attr0:2.6.0-9.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:attr-debuginfo0:2.6.0-1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:attr-debugsource0:2.6.0-1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:libattr0:2.6.0-1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:libattr0:2.6.0-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:libattr0:2.6.0-9.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:libattr-debuginfo0:2.6.0-1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:libattr-devel0:2.6.0-1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:libattr-devel0:2.6.0-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:libattr-devel0:2.6.0-9.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
rocky linux:attr0:2.6.0-1.el8_10 · Rocky Linux:8Package registry (OSV)
suse:acl2.4.0-160000.1.1 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:attr2.6.0-160000.1.1 · SUSE:Linux Micro 6.2Package 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.

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

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

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

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

CWE-59 · Improper Link Resolution Before File Access ('Link Following')

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

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

References

Show all references (13 more)

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

All records