CVE-2026-23278 — Incomplete Cleanup in Linux
Severity
7.8HIGHNVD
EPSS
0.0%
top 96.58%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 20
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: always walk all pending catchall elements
During transaction processing we might have more than one catchall element:
1 live catchall element and 1 pending element that is coming as part of the
new batch.
If the map holding the catchall elements is also going away, its
required to toggle all catchall elements and not just the first viable
candidate.
Otherwise, we get:
WARNING: ./include/net/netfilter/nf…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages3 packages
▶CVEListV5linux/linux628bd3e49cba1c066228e23d71a852c23e26da73 — eb0948fa13298212c5f8b30ee48efdae4389ab09+10
🔴Vulnerability Details
4OSV▶
CVE-2026-23278: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: always walk all pending catchall elements During transaction↗2026-03-20
GHSA▶
GHSA-5vxp-pqjj-287g: In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: always walk all pending catchall elements
During transacti↗2026-03-20