CVE-2026-82631: valkey-io valkey

Affected products, as the CNA wrote them
Vendor	Product	Versions
valkey-io	valkey	affected 9.1.0

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
2.1	Low	4.0	CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	CNA (VulDB)Used for this record
2.2	Low	3.1	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	CNA (VulDB)
2.2	Low	3.0	CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	CNA (VulDB)
1.7	Low	2.0	AV:N/AC:H/Au:M/C:N/I:N/A:P/E:POC/RL:OF/RC:C	CNA (VulDB)

CISA KEV Not listed.
EPSS 0.0036, the 29th 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 31 Aug 2026. New records show when each source confirmed them.

Sources

References from the CNA

vuldb.com/vuln/397129 vdb-entrytechnical-description
vuldb.com/vuln/397129/cti signaturepermissions-required
vuldb.com/cve/CVE-2026-82631 third-party-advisory
vuldb.com/submit/893793 third-party-advisory
github.com/valkey-io/valkey/issues/4198 issue-tracking
github.com/valkey-io/valkey/pull/4212 issue-trackingpatch
github.com/valkey-io/valkey/commit/b2fb0e13f5b4c8c2fb63dcfc2c37a067a0d6d20b patch
github.com/valkey-io/valkey/ product
github.com/user-attachments/files/30111628/PoC.zip exploit

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.