CVE-2026-120833: NIST labbench

labbench before 0.46.1 Deserialization of Untrusted Data via read() Pickle Auto-Dispatch

CVSS 8.5 HighEPSS 0.0014 · 3rd percentile

Published by the CVE Program (CNA: VulnCheck) at 3 Nov 2026, 00:13 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
NIST	labbench pkg:pypi/labbench	affected before 0.46.1 custom Other versions: unaffected

Identifiers

CVE-2026-120833

CNA

VulnCheck

Weakness (CWE)

CWE-502

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.5	High	4.0	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0014, the 3rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

3 Nov 2026, 00:13 UTC Confirmed by the CVE List
3 Nov 2026, 00:37 UTC First seen by agentprime
3 Nov 2026, 01:16 UTC Confirmed by NVD

Sources

References from the CNA

github.com/usnistgov/labbench/pull/32 patchissue-tracking
github.com/usnistgov/labbench/commit/ac9b9b18cba67cb8e85eb563b6bb7dc1092b4c54 patch
github.com/usnistgov/labbench/blob/0.46.0/src/labbench/_data.py#L1664-L1666 technical-description
github.com/usnistgov/labbench/blob/0.46.1/ChangeLog.md release-notes
pypi.org/project/labbench/0.46.1/ product
github.com/usnistgov/labbench product
www.vulncheck.com/advisories/labbench-before-0.46.1-deserialization-of-untrusted-data-via-read-pickle-auto-dispatch third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.