9.8

CVE-2026-24009: Docling Core vulnerable to Remote Code Execution via unsafe PyYAML usage

Analyzed
AliasesGHSA-vqxf-v2gg-x3hcPYSEC-2026-1313
Published 22-01-2026Last modified 22-01-2026

Vulnerability summary

CVE-2026-24009 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in docling-project docling-core. EPSS estimates a 1.53% chance of exploitation in the next 30 days, higher than 74.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 8.1 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.53%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CVE-2020-14343

Timeline

  1. 22-01-2026
    PublishedVulnerability first disclosed.
  2. 22-01-2026
    Last modifiedVulnerability information updated.

Description

Docling Core (or docling-core) is a library that defines core data types and transformations in the document processing application Docling. A PyYAML-related Remote Code Execution (RCE) vulnerability, namely CVE-2020-14343, is exposed in docling-core starting in version 2.21.0 and prior to version 2.48.4, specifically only if the application uses pyyaml prior to version 5.4 and invokes `docling_core.types.doc.DoclingDocument.load_from_yaml()` passing it untrusted YAML data. The vulnerability has been patched in docling-core version 2.48.4. The fix mitigates the issue by switching `PyYAML` deserialization from `yaml.FullLoader` to `yaml.SafeLoader`, ensuring that untrusted data cannot trigger code execution. Users who cannot immediately upgrade docling-core can alternatively ensure that the installed version of PyYAML is 5.4 or greater.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.53%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

Decrease -0.02 pp

From 1.56% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Docling1 product
Docling-project1 product
PyPI1 product
  • docling-core≥ 2.21.0, < 2.48.4

3 vendors · 3 products

References

9 links