CVE-2026-31223: The snorkel library thru v0.10.0 contains a critical insecure deserialization vulnerability (CWE-502) in the B

Q: How do I fix CVE-2026-31223?

snorkel: upgrade to newer than 0.10.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-31223 being exploited?

CVE-2026-31223 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-31223 affect?

CVE-2026-31223 affects snorkel. Severity is high (CVSS 8.8). The snorkel library thru v0.10.0 contains a critical insecure deserialization vulnerability (CWE-502) in the BaseLabeler.load() method of the BaseLabeler class. The method loads serialized labeler models using the unsafe pickle.load() funct

Routine

HIGH 8.8UPGRADE

CVE-2026-31223 is a high-severity flaw (CVSS 8.8) affecting snorkel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The snorkel library thru v0.10.0 contains a critical insecure deserialization vulnerability (CWE-502) in the BaseLabeler.load() method of the BaseLabeler class. The method loads serialized labeler models using the unsafe pickle.load() function on user-supplied file paths without any validation or security controls. Python's pickle module is inherently dangerous for deserializing untrusted data, as it can execute arbitrary code during the deserial

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-502
Published	2026-05-12
Last modified	2026-10-19

Publisher (CNA): MITRE · Vendor: snorkel

Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-12 16:16 UTCPublished CVE record published
2026-10-19 22:10 UTCUpdated Record last modified

snorkel snorkel UPGRADE

Affected: <= 0.10.0

Fixed in: newer than 0.10.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy snorkel || rpm -q snorkel || snorkel --version

2. UPGRADE to newer than 0.10.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade snorkel

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade snorkel

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-31223?

snorkel: upgrade to newer than 0.10.0. Exact commands for each OS are on this page.

Is CVE-2026-31223 being exploited?

CVE-2026-31223 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-31223 affect?

CVE-2026-31223 affects snorkel. Severity is high (CVSS 8.8). The snorkel library thru v0.10.0 contains a critical insecure deserialization vulnerability (CWE-502) in the BaseLabeler.load() method of the BaseLabeler class. The method loads serialized labeler models using the unsafe pickle.load() funct

How urgent is CVE-2026-31223?

Priority 39/100. High severity

Software pages

Python vulnerabilities

Related CVEs

CVE-2026-31222 HIGH 8.8 UPGRADE The snorkel library thru v0.10.0 contains an insecure deserialization vulnerability (CWE-502) in the Trainer.l
CVE-2026-31224 HIGH 8.8 UPGRADE The snorkel library thru v0.10.0 contains an insecure deserialization vulnerability (CWE-502) in the Multitask

References

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