CVE-2026-110598: libyal libpff

Libyal libpff through 20260926 heap out-of-bounds read via libpff_record_entry_get_multi_value

CVSS 6.9 MediumEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: VulnCheck) at 14 Oct 2026, 14:16 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
libyal	libpff pkg:github/libyal/libpff	affected 20260926 and earlier custom Other versions: unaffected

Identifiers

CVE-2026-110598

CNA

VulnCheck

Weakness (CWE)

CWE-125

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
6.9	Medium	4.0	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
6.1	Medium	3.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0017, the 6th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 14 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

hackmd.io/@haind-pwn/libpff-multivalue-offset-underflow-oob-read third-party-advisory
github.com/libyal/libpff/blob/03545511ab7a7a609e50ec715bdd3985c3be71c5/libpff/libpff_record_entry.c#L2825-L2874 technical-description
github.com/libyal/libpff/blob/03545511ab7a7a609e50ec715bdd3985c3be71c5/libpff/libpff_multi_value.c#L207-L271 technical-description
www.vulncheck.com/advisories/libyal-libpff-through-20260926-heap-out-of-bounds-read-via-libpff-record-entry-get-multi-value 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.