CVE-2026-55113: A malicious actor with access to the network could exploit a Server-Side Request Forgery (SSRF) vulnerability

Q: How do I fix CVE-2026-55113?

unifi talk application: upgrade to 5.2.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-55113 being exploited?

CVE-2026-55113 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-2026-55113 affect?

CVE-2026-55113 affects unifi talk application. Severity is high (CVSS 7.5). A malicious actor with access to the network could exploit a Server-Side Request Forgery (SSRF) vulnerability found in UniFi Talk Application to execute a Denial of Service (DoS) attack and bypass authentication in certain UniFi Talk API en

Q: How urgent is CVE-2026-55113?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.5REMOTEUPGRADE

CVE-2026-55113 is a high-severity flaw (CVSS 7.5) affecting unifi talk application. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A malicious actor with access to the network could exploit a Server-Side Request Forgery (SSRF) vulnerability found in UniFi Talk Application to execute a Denial of Service (DoS) attack and bypass authentication in certain UniFi Talk API endpoints.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-07-02
Last modified	2026-10-25

Publisher (CNA): HackerOne · Vendor: ui

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-02 15:17 UTCPublished CVE record published
2026-10-25 21:10 UTCUpdated Record last modified

ui unifi talk application UPGRADE

Affected: < 5.2.2

Fixed in: 5.2.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy unifi-talk-application || rpm -q unifi-talk-application || unifi-talk-application --version

2. UPGRADE to 5.2.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade unifi-talk-application

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade unifi-talk-application

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-2026-55113?

unifi talk application: upgrade to 5.2.2. Exact commands for each OS are on this page.

Is CVE-2026-55113 being exploited?

CVE-2026-55113 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-2026-55113 affect?

CVE-2026-55113 affects unifi talk application. Severity is high (CVSS 7.5). A malicious actor with access to the network could exploit a Server-Side Request Forgery (SSRF) vulnerability found in UniFi Talk Application to execute a Denial of Service (DoS) attack and bypass authentication in certain UniFi Talk API en

How urgent is CVE-2026-55113?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Software pages

Ubiquiti vulnerabilities

Related CVEs

CVE-2026-50747 CRITICAL 9.9 UPGRADE A malicious actor with access to the network and low privileges could exploit a series of authenticated SQL In
CVE-2026-55119 HIGH 8.1 UPGRADE A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulne

References

← Back to latest CVEs