CVE-2022-29155: In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability exists in the experimental

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CRITICAL 9.8REMOTEWATCHLISTUPGRADEMITIGATEMITIGATE

CVE-2022-29155 is a critical-severity flaw (CVSS 9.8) affecting openldap, debian linux, h300s firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability exists in the experimental back-sql backend to slapd, via a SQL statement within an LDAP query. This can occur during an LDAP search operation when the search filter is processed, due to a lack of proper escaping.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	64.5% (top 1%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-05-04
Last modified	2026-10-14

Publisher (CNA): MITRE · Vendor: debian · netapp · openldap

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-05-04 20:15 UTCPublished CVE record published
2026-10-14 17:17 UTCUpdated Record last modified

openldap openldap UPGRADE

Affected: >= 2.0 and < 2.5.12 · >= 2.6.0 and < 2.6.2

Fixed in: 2.5.12, 2.6.2

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy openldap || rpm -q openldap || openldap --version

2. UPGRADE to 2.5.12 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade openldap

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openldap

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison openldap sudo apt install openldap=<VERSION_BEFORE_2.0> sudo apt-mark hold openldap

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list openldap sudo dnf downgrade openldap-<VERSION_BEFORE_2.0> sudo dnf versionlock add openldap

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

debian debian linux MITIGATE

Affected: 9.0 · 10.0 · 11.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

netapp h300s firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

netapp h500s firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

netapp h700s firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

netapp h700e firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · iodine · FIXED · 0.9.0-2.fc46 · FEDORA-2026-4448545972 · source

sudo dnf upgrade --advisory=FEDORA-2026-4448545972

Fedora ELN · python-idna · FIXED · 3.20-1.eln159 · FEDORA-2026-4421e6642f · source

sudo dnf upgrade --advisory=FEDORA-2026-4421e6642f

Ubuntu 20.04 · openldap · FIXED · 2.4.49+dfsg-2ubuntu1.9

sudo apt update && sudo apt install --only-upgrade openldap dpkg --compare-versions "$(dpkg-query -W -f='${Version}' openldap)" ge "2.4.49+dfsg-2ubuntu1.9" && echo PATCHED || echo STILL-VULNERABLE

Ubuntu 22.04 · openldap · FIXED · 2.5.11+dfsg-1~exp1ubuntu3.1

sudo apt update && sudo apt install --only-upgrade openldap dpkg --compare-versions "$(dpkg-query -W -f='${Version}' openldap)" ge "2.5.11+dfsg-1~exp1ubuntu3.1" && echo PATCHED || echo STILL-VULNERABLE

Debian 12 · openldap · FIXED · 2.5.12+dfsg-1

sudo apt update && sudo apt install --only-upgrade openldap dpkg --compare-versions "$(dpkg-query -W -f='${Version}' openldap)" ge "2.5.12+dfsg-1" && echo PATCHED || echo STILL-VULNERABLE

Debian 13 · openldap · FIXED · 2.5.12+dfsg-1

sudo apt update && sudo apt install --only-upgrade openldap dpkg --compare-versions "$(dpkg-query -W -f='${Version}' openldap)" ge "2.5.12+dfsg-1" && echo PATCHED || echo STILL-VULNERABLE

RHEL 6 · compat-openldap · DEFERRED

RHEL 6 · openldap · DEFERRED

RHEL 7 · compat-openldap · DEFERRED

RHEL 7 · openldap · DEFERRED

RHEL 8 · openldap · NOT AFFECTED

Alpine 3.20 · openldap · FIXED · openldap-2.6.2-r0

apk add --upgrade openldap apk info -v openldap

Alpine 3.21 · openldap · FIXED · openldap-2.6.2-r0

apk add --upgrade openldap apk info -v openldap

Alpine 3.22 · openldap · FIXED · openldap-2.6.2-r0

apk add --upgrade openldap apk info -v openldap

Alpine 3.23 · openldap · FIXED · openldap-2.6.2-r0

apk add --upgrade openldap apk info -v openldap

Amazon Linux 2 · see advisory · FIXED · ALAS2-2022-1796 · source

sudo yum update --advisory=ALAS2-2022-1796

Amazon Linux 1 · see advisory · FIXED · ALAS-2022-1586 · source

sudo yum update --advisory=ALAS-2022-1586

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-29155?

openldap: upgrade to 2.5.12, 2.6.2; debian linux: mitigate or apply the listed mitigation; h300s firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-29155 being exploited?

CVE-2022-29155 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-29155 affect?

CVE-2022-29155 affects openldap, debian linux, h300s firmware. Severity is critical (CVSS 9.8). In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability exists in the experimental back-sql backend to slapd, via a SQL statement within an LDAP query. This can occur during an LDAP search operation when the sear

How urgent is CVE-2022-29155?

Priority 74/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Debian vulnerabilities · OpenLDAP vulnerabilities

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References

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