CVE-2026-81158: Incorrect Authorization vulnerability in Drupal Entity API allows Forceful Browsing

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2026-81158 is a medium-severity flaw (CVSS 5.3) affecting entity api. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incorrect Authorization vulnerability in Drupal Entity API allows Forceful Browsing. This issue affects Entity API versions: from 0.0.0 to 1.8.0.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-09-02
Last modified	2026-10-01

Publisher (CNA): Drupal.org · Vendor: entity api project

Last updated 2026-10-01 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-02 13:18 UTCPublished CVE record published
2026-10-01 13:34 UTCUpdated Record last modified

entity api project entity api UPGRADE

Affected: >= 7.x-1.0 and <= 7.x-1.11 · >= 8.x-0.1 and < 8.x-1.8

Fixed in: 8.x-1.8

Safe to downgrade to: a release before 7.x-1.0

1. Check installed version

apt-cache policy entity-api || rpm -q entity-api || entity-api --version

2. UPGRADE to 8.x-1.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade entity-api

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade entity-api

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 7.x-1.0 (Debian / Ubuntu)

apt-cache madison entity-api sudo apt install entity-api=<VERSION_BEFORE_7.x-1.0> sudo apt-mark hold entity-api

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

dnf --showduplicates list entity-api sudo dnf downgrade entity-api-<VERSION_BEFORE_7.x-1.0> sudo dnf versionlock add entity-api

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.

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-2026-81158?

entity api: upgrade to 8.x-1.8. Exact commands for each OS are on this page.

Is CVE-2026-81158 being exploited?

CVE-2026-81158 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-2026-81158 affect?

CVE-2026-81158 affects entity api. Severity is medium (CVSS 5.3). Incorrect Authorization vulnerability in Drupal Entity API allows Forceful Browsing. This issue affects Entity API versions: from 0.0.0 to 1.8.0.

How urgent is CVE-2026-81158?

Priority 30/100. Remotely exploitable, no login, no user action

Software pages

Drupal vulnerabilities

References

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