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CVE-2026-54659

Pagy I18n locale option is not validated before being used in a file path

MEDIUM
6.9
CVSS Score
Published: July 28, 2026 at 10:25 PM UTC
Updated: October 23, 2026 at 11:10 PM UTC
1 product affected across 1 vendorPagy

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Pagy is agnostic pagination in plain Ruby. From 43.0.0 until 43.5.6, Pagy::I18n.locale= in gem/lib/pagy/modules/i18n/i18n.rb stored locale values verbatim and later used them as <locale>.yml path components, allowing untrusted params[:locale] values with absolute paths or ../ sequences to create a file existence and readability oracle for YAML files. This issue is fixed in version 43.5.6.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Pagy· Ddnexus
90%
>= 43.0.0, < 43.5.6
Affected range stops below 43.5.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_CONFIRM
Source: cverecord
https://github.com/ddnexus/pagy/security/advisories/GHSA-2xmw-f8j8-wfxc
x_refsource_MISC
Source: cverecord
https://github.com/ddnexus/pagy/pull/908
x_refsource_MISC
Source: cverecord
https://github.com/ddnexus/pagy/commit/efcf09690e9fa7d7abdfb987b785a55f87e287df
x_refsource_MISC
Source: cverecord
https://github.com/ddnexus/pagy/releases/tag/43.5.6

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22CWE-200

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