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  4. CVE 2026 124318 treeio through 20 insecure deserialization rce
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Back to active CVEs
High · CVSS 8.6CVE-2026-124318

Treeio through 2.0 Insecure Deserialization RCE via Admin-Editable Pickle FieldsCVE-2026-124318

Answer in brief

CVE-2026-124318 records a High severity (CVSS 8.6) vulnerability in Treeio through 2.0 Insecure Deserialization RCE via Admin-Editable Pickle Fields. The current sources do not mark it as known exploited. The current feed maps treeio/treeio (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 7, 2026Updated Nov 7, 2026Source checked Nov 7, 2026First seen by HOL Nov 7, 2026Material review Nov 7, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.6
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps treeio/treeio (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
treeio/treeiogeneric>=0 <=2.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for treeio/treeio.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 7, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

Treeio through 2.0 contains an insecure deserialization vulnerability in UpdateRecord.get_format_strings and ModuleSetting.loads that allows staff users to execute code via unverified pickle data. Attackers can store a crafted base64 pickle payload in an UpdateRecord format_strings field through the Django admin, executing Python code as the web server user when news feeds render.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Deserialization
EPSS
Not reported
CWE IDs
CWE-502
Source
CVE List V5
Source checked
Nov 7, 2026
References
5 linked sources
Open source record