CVE-2026-3054: A vulnerability was identified in Alinto SOGo 5.12.3/5.12.4

Routine

MEDIUM 4.3DOWNGRADE

CVE-2026-3054 is a medium-severity flaw (CVSS 4.3) affecting sogo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was identified in Alinto SOGo 5.12.3/5.12.4. This impacts an unknown function. The manipulation of the argument hint leads to cross site scripting. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2026-02-24
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: alinto

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

Am I affected?

Timeline

2026-02-24 03:16 UTCPublished CVE record published
2026-06-17 10:42 UTCUpdated Record last modified

alinto sogo DOWNGRADE

Affected: 5.12.3 · 5.12.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.12.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 5.12.3 (Debian / Ubuntu)

apt-cache madison sogo sudo apt install sogo=<VERSION_BEFORE_5.12.3> sudo apt-mark hold sogo

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sogo sudo dnf downgrade sogo-<VERSION_BEFORE_5.12.3> sudo dnf versionlock add sogo

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-2026-3054?

sogo: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-3054 being exploited?

CVE-2026-3054 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-2026-3054 affect?

CVE-2026-3054 affects sogo. Severity is medium (CVSS 4.3). A vulnerability was identified in Alinto SOGo 5.12.3/5.12.4. This impacts an unknown function. The manipulation of the argument hint leads to cross site scripting. The attack can be initiated remotely. The exploit is publicly available and

How urgent is CVE-2026-3054?

Priority 25/100. No elevated risk signals yet.

Related CVEs

CVE-2025-63499 MEDIUM 6.1 UPGRADE Alinto Sogo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the theme parameter.
CVE-2026-33550 LOW 2.0 UPGRADE SOGo before 5.12.5 does not renew the OTP if a user disables/enables it, and has a too short length (only 12 d
CVE-2025-71276 MEDIUM 6.4 UPGRADE SOGo before 5.12.5 is prone to a XSS vulnerability with events, tasks, and contacts categories.

References

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