CVE-2026-34191: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache P

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CRITICAL 9.1REMOTEWATCHLISTUPGRADE

CVE-2026-34191 is a critical-severity flaw (CVSS 9.1) affecting apr-util. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache Portable Runtime Utility via apr_dbd_oracle provider. This issue affects Apache Portable Runtime Utility: from 1.6.0 through 1.6.3

Why this priority

Critical severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-89
Published	2026-08-06
Last modified	2026-10-23

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-06 15:16 UTCPublished CVE record published
2026-10-23 21:10 UTCUpdated Record last modified

apache apr-util UPGRADE

Affected: >= 1.6.0 and <= 1.6.3

Fixed in: newer than 1.6.3

Safe to downgrade to: a release before 1.6.0

1. Check installed version

apt-cache policy apr-util || rpm -q apr-util || apr-util --version

2. UPGRADE to newer than 1.6.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade apr-util

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade apr-util

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 1.6.0 (Debian / Ubuntu)

apt-cache madison apr-util sudo apt install apr-util=<VERSION_BEFORE_1.6.0> sudo apt-mark hold apr-util

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

dnf --showduplicates list apr-util sudo dnf downgrade apr-util-<VERSION_BEFORE_1.6.0> sudo dnf versionlock add apr-util

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.

Exact fixes by distribution

Fedora 46 · pspp · FIXED · 2.1.3-2.fc46 · FEDORA-2026-0d6444911b · source

sudo dnf upgrade --advisory=FEDORA-2026-0d6444911b

Fedora ELN · barman · FIXED · 3.20.1-3.eln159 · FEDORA-2026-45ecf042c2 · source

sudo dnf upgrade --advisory=FEDORA-2026-45ecf042c2

Ubuntu 24.04 · apr-util · NOT AFFECTED

Ubuntu 20.04 · apr-util · NOT AFFECTED

Ubuntu 22.04 · apr-util · NOT AFFECTED

Debian 12 · apr-util · FIXED · 1.6.3-1+deb12u1

sudo apt update && sudo apt install --only-upgrade apr-util dpkg --compare-versions "$(dpkg-query -W -f='${Version}' apr-util)" ge "1.6.3-1+deb12u1" && echo PATCHED || echo STILL-VULNERABLE

Debian 13 · apr-util · FIXED · 1.6.3-3+deb13u1

sudo apt update && sudo apt install --only-upgrade apr-util dpkg --compare-versions "$(dpkg-query -W -f='${Version}' apr-util)" ge "1.6.3-3+deb13u1" && echo PATCHED || echo STILL-VULNERABLE

RHEL 10 · apr-util · NOT AFFECTED

RHEL 6 · apr-util · NOT AFFECTED

RHEL 7 · apr-util · NOT AFFECTED

RHEL 8 · apr-util · NOT AFFECTED

RHEL 9 · apr-util · NOT AFFECTED

Alpine 3.21 · apr-util · FIXED · apr-util-1.6.4-r0

apk add --upgrade apr-util apk info -v apr-util

Alpine 3.22 · apr-util · FIXED · apr-util-1.6.4-r0

apk add --upgrade apr-util apk info -v apr-util

Alpine 3.23 · apr-util · FIXED · apr-util-1.6.4-r0

apk add --upgrade apr-util apk info -v apr-util

Alpine 3.24 · apr-util · FIXED · apr-util-1.6.4-r0

apk add --upgrade apr-util apk info -v apr-util

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-2026-34191?

apr-util: upgrade to newer than 1.6.3. Exact commands for each OS are on this page.

Is CVE-2026-34191 being exploited?

CVE-2026-34191 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-2026-34191 affect?

CVE-2026-34191 affects apr-util. Severity is critical (CVSS 9.1). Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache Portable Runtime Utility via apr_dbd_oracle provider. This issue affects Apache Portable Runtime Utility: from 1.6.0 through 1.6.3

How urgent is CVE-2026-34191?

Priority 57/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

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References

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