Percona XtraBackup 2.4.20 unintentionally writes the command line to any resulting backup file output.

published 2022-06-02 4 y ago modified 2026-06-17 4 mo ago also BIT-percona-xtrabackup-2022-26944 , BIT-percona-xtrabackup-binary-2022-26944 , EUVD-2022-31489

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits: 0; none known

Percona XtraBackup 2.4.20 unintentionally writes the command line to any resulting backup file output. This may include sensitive arguments passed at run time. In addition, when --history is passed at run time, this command line is also written to the PERCONA_SCHEMA.xtrabackup_history table. NOTE: this issue exists because of an incomplete fix for CVE-2020-10997.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-26944 updated 2026-03-27 cvss 6.5

percona-xtrabackup: Information exposure via cmd line output and table history into backup file

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:P/I:N/A:N
OSV	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
bitnami	percona-xtrabackup	>=2.4.20, <=2.4.20	no fix listed
bitnami	percona-xtrabackup-binary	>=2.4.20, <=2.4.20	no fix listed

References

jira.percona.com /browse/PXB-2722
permissions-required, vendor-advisory, web
docs.percona.com /percona-xtrabackup/2.4/release-notes/2.4/2.4.25.html
release-notes, vendor-advisory, web

Sources

CVE List CVE-2022-26944
NVD CVE-2022-26944
OSV BIT-percona-xtrabackup-2022-26944
OSV BIT-percona-xtrabackup-binary-2022-26944

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary