VulnSocial

CVE-2026-46338Disclosure(facelessuser / pymdown_extensions)

LOWCVSS 4.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.get_snippet_path() in pymdownx/snippets.py when `restrict_base_path: True`, allowing markdown snippet directives to read files from sibling paths that share the same base_path prefix, such as docs and docs_internal. This is a regression of CVE-2023-32309. This issue is fixed in version 10.21.3.

facelessuser CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Patch / fix
Exploit / PoC references
Other references
Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • pymdown_extensions

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
facelessuser
Products
pymdown_extensions

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-16: 207-16
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-46338 PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment chec… https://www.cve.org/CVERecord?id=CVE-2026-46338 ----- Traducción: CVE-2026-46338 PyM… http://infoflow.cloud`

    Post summary

    The tweet announces CVE-2026‑46338 for PyMdown Extensions, noting affected versions but providing no PoC, exploit details, patch information, or deeper technical data.

    0000032
    92 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-46338 PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment chec… https://www.cve.org/CVERecord?id=CVE-2026-46338

    Post summary

    The tweet briefly notes that CVE‑2026‑46338 affects PyMdown Extensions between versions 10.0.1 and 10.21.3, but offers no exploitation or mitigation details.

    00000658
    57.8K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appfacelessuserpymdown_extensions---

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