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Noroxi
NVD / CVE Program· CNA Go

CVE-2025-22873: Improper access to parent directory of root in os

Noroxi assessment

Priority: Monitor (action score 15/100)

  • 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: 0.23% (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: Go standard library os 1.23.9, 1.24.3.

Low priority for now. Upgrade to Go standard library os 1.23.9, 1.24.3 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

It was possible to improperly access the parent directory of an os.Root by opening a filename ending in "../". For example, Root.Open("../") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent.

LowCVSS 3.8 · v3.1—No exploit Fix available
Published
Feb 4, 2026
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile

Report tools

JSON

Action score

15

Monitor

Low priority for now.

CVSS
15 / 40 · 3.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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-2025-22873

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

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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.

VendorProduct
golanggo

Affected versions

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

  • golang gobefore 1.23.9
  • golang go1.24.0 and later · before 1.24.3

Versions reported by the vendor

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

  • Go standard library os

    • before 1.23.9affected · semver
    • 1.24.0-0 and later · before 1.24.3affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:13golang-1.24before 1.24.4-11.24.4-1
Gostdlibfrom 1.24.0-0 · before 1.24.31.24.3
Gostdlibbefore 1.23.91.23.9
openSUSE:Leap 15.6go1.24before 1.24.4-150000.1.26.11.24.4-150000.1.26.1
openSUSE:Leap 15.6go1.24before 1.24.3-150000.1.23.11.24.3-150000.1.23.1
openSUSE:Leap 15.6govulncheck-vulndbbefore 0.0.20260205T172317-150000.1.146.10.0.20260205T172317-150000.1.146.1
openSUSE:Tumbleweedgo1.24before 1.24.3-1.11.24.3-1.1
Red Hat:hummingbird:1golang1.25before 0:1.25.9-1.hum10:1.25.9-1.hum1
Red Hat:hummingbird:1golang1.25-binbefore 0:1.25.9-1.hum10:1.25.9-1.hum1
Red Hat:hummingbird:1golang1.25-docsbefore 0:1.25.9-1.hum10:1.25.9-1.hum1
Red Hat:hummingbird:1golang1.25-miscbefore 0:1.25.9-1.hum10:1.25.9-1.hum1
Red Hat:hummingbird:1golang1.25-sharedbefore 0:1.25.9-1.hum10:1.25.9-1.hum1
Red Hat:hummingbird:1golang1.25-srcbefore 0:1.25.9-1.hum10:1.25.9-1.hum1
Red Hat:hummingbird:1golang1.25-testsbefore 0:1.25.9-1.hum10:1.25.9-1.hum1
Red Hat:hummingbird:1golang1.26before 0:1.26.2-1.hum10:1.26.2-1.hum1
Red Hat:hummingbird:1golang1.26-binbefore 0:1.26.2-1.hum10:1.26.2-1.hum1
Red Hat:hummingbird:1golang1.26-docsbefore 0:1.26.2-1.hum10:1.26.2-1.hum1
Red Hat:hummingbird:1golang1.26-miscbefore 0:1.26.2-1.hum10:1.26.2-1.hum1
Red Hat:hummingbird:1golang1.26-sharedbefore 0:1.26.2-1.hum10:1.26.2-1.hum1
Red Hat:hummingbird:1golang1.26-srcbefore 0:1.26.2-1.hum10:1.26.2-1.hum1
Red Hat:hummingbird:1golang1.26-testsbefore 0:1.26.2-1.hum10:1.26.2-1.hum1
SUSE:Linux Enterprise Module for Development Tools 15 SP6go1.24before 1.24.4-150000.1.26.11.24.4-150000.1.26.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7go1.24before 1.24.3-150000.1.23.11.24.3-150000.1.23.1

Same product

golang: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-7187The "go get" implementation in Go 1.9.4, when the -insecure command-line option is used, does not validate the import path (get/vcs.go only
    54Plan
  • CVE-2018-16873In Go before 1.10.6 and 1.11.x before 1.11.3, the "go get" command is vulnerable to remote code execution when executed with the -u flag and
    52Plan
  • CVE-2021-38297Go before 1.16.9 and 1.17.x before 1.17.2 has a Buffer Overflow via large arguments in a function invocation from a WASM module, when GOARCH
    42Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-61731Jan 28, 2026 · Arbitrary file write using cgo pkg-config directive in cmd/go
    31Monitor
  • ← EarlierCVE-2025-68119Jan 28, 2026 · Unexpected code execution when invoking toolchain in cmd/go
    28Monitor
  • Later →CVE-2025-61732Feb 5, 2026 · Potential code smuggling via doc comments in cmd/cgo
    34Monitor

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
Go standard library os1.23.9Vendor (CNA)
Go standard library os1.24.3Vendor (CNA)
debian:golang-1.241.24.4-1 · Debian:13Package registry (OSV)
Go:stdlib1.23.9Package registry (OSV)
Go:stdlib1.24.3Package registry (OSV)
opensuse:go1.241.24.4-150000.1.26.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:govulncheck-vulndb0.0.20260205T172317-150000.1.146.1 · openSUSE:Leap 15.6Package registry (OSV)
red hat:golang1.250:1.25.9-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.25-bin0:1.25.9-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.25-docs0:1.25.9-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.25-misc0:1.25.9-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.25-shared0:1.25.9-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.260:1.26.2-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.26-bin0:1.26.2-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.26-docs0:1.26.2-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.26-misc0:1.26.2-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.26-shared0:1.26.2-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.26-src0:1.26.2-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:golang1.26-tests0:1.26.2-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
suse:go1.241.24.3-150000.1.23.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP7Package registry (OSV)
suse:go1.241.24.4-150000.1.26.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP6Package 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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

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

No commit or PR link among the references.

Credits

All researchers

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

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

—

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2026-3381062 days apartCase-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509
    32Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

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
low · data can be read
Integrity
none
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

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

Weakness class (CWE)

CWE-23 · Relative Path Traversal

CVSS vector

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

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.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (4 more)

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

All records