CVE-2026-27012: OpenSTAManager is an open source management software for technical assistance and invoicing

Q: How do I fix CVE-2026-27012?

openstamanager: upgrade to newer than 2.9.8. Exact commands for each OS are on this page.

Q: Is CVE-2026-27012 being exploited?

CVE-2026-27012 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-27012 affect?

CVE-2026-27012 affects openstamanager. Severity is critical (CVSS 9.8). OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a privilege escalation and authentication bypass vulnerability in OpenSTAManager allows any attacker to arbitrarily change a

Q: How urgent is CVE-2026-27012?

Priority 56/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-27012 is a critical-severity flaw (CVSS 9.8) affecting openstamanager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a privilege escalation and authentication bypass vulnerability in OpenSTAManager allows any attacker to arbitrarily change a user's group (idgruppo) by directly calling modules/utenti/actions.php. This can promote an existing account (e.g. agent) into the Amministratori group as well as demote any user including existing administrato

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-306
Published	2026-03-03
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: devcode

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-03 22:16 UTCPublished CVE record published
2026-06-17 10:26 UTCUpdated Record last modified

devcode openstamanager UPGRADE

Affected: <= 2.9.8

Fixed in: newer than 2.9.8

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.9.8 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openstamanager

Note

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

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-2026-27012?

openstamanager: upgrade to newer than 2.9.8. Exact commands for each OS are on this page.

Is CVE-2026-27012 being exploited?

CVE-2026-27012 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-2026-27012 affect?

CVE-2026-27012 affects openstamanager. Severity is critical (CVSS 9.8). OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a privilege escalation and authentication bypass vulnerability in OpenSTAManager allows any attacker to arbitrarily change a

How urgent is CVE-2026-27012?

Priority 56/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

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References

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