CVE-2026-32685

June 2, 2026, 4:16 p.m.

4.6
Medium

Description

Path traversal vulnerability in Gleam's handling of custom documentation pages allows arbitrary file read and file write outside the intended documentation output directory. The documentation.pages entries from gleam.toml are incorporated into filesystem paths without sufficient validation or confinement to the intended project and documentation output directories. The documentation.pages[].path field can be used to write generated documentation files outside the intended build/dev/docs/<package>/ output directory. The documentation.pages[].source field can be used to read files outside the project directory and embed their contents into generated documentation output. An attacker who can convince a victim to run gleam docs build on an untrusted project, or with untrusted gleam.toml content, can cause local files readable by the victim to be included in generated documentation artifacts, and can cause generated documentation files to be written outside the intended docs output directory. This issue affects Gleam from 1.16.0 until 1.17.0.

Product(s) Impacted

Vendor Product Versions
Gleam
  • Gleam
  • 1.16.0-1.17.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a gleam gleam 1.16.0-1.17.0 / / / / / / /

References

https://cna.erlef.org/cves/CVE-2026-32685.html
https://github.com/gleam-lang/gleam/commit/81570611906b6b0039c948037094d09a68700f3a
https://github.com/gleam-lang/gleam/commit/c9230cd3045de8fd8481dae3a4557c0146df1430
https://github.com/gleam-lang/gleam/security/advisories/GHSA-wjx8-7w8m-p4v7
https://osv.dev/vulnerability/EEF-CVE-2026-32685
https://github.com/gleam-lang/gleam/security/advisories/GHSA-wjx8-7w8m-p4v7

Tags

CWE-22
6b3ad84c-e1a6-4bf7-a703-f496b71e49db
2026-06-02
CVE-2026-32685

CVSS Score

4.6 / 10

CVSS Data - 4.0

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Attack Requirements: NONE
  • Privileges Required: NONE
  • User Interaction: ACTIVE
  • Scope:
  • Confidentiality Impact: LOW
  • Integrity Impact: LOW
  • Availability Impact: NONE
  • Exploit Maturity: NOT_DEFINED

    • CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/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

    View Vector String

Timeline

Published: June 2, 2026, 2:16 p.m.
Last Modified: June 2, 2026, 4:16 p.m.

Status : Deferred

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

6b3ad84c-e1a6-4bf7-a703-f496b71e49db

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.