CVE-2026-21742: A cleartext transmission of sensitive information vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3

Routine

MEDIUM 5.7UPGRADE

CVE-2026-21742 is a medium-severity flaw (CVSS 5.7) affecting fortisoar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A cleartext transmission of sensitive information vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3, FortiSOAR PaaS 7.5.0 through 7.5.2, FortiSOAR PaaS 7.4 all versions, FortiSOAR PaaS 7.3 all versions, FortiSOAR on-premise 7.6.0 through 7.6.2, FortiSOAR on-premise 7.5.0 through 7.5.1, FortiSOAR on-premise 7.4 all versions, FortiSOAR on-premise 7.3 all versions may allow an authenticated attacker to view cleartext password in response

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.1% (top 96%)
CISA exploited list	No
Weakness	CWE-319
Published	2026-04-14
Last modified	2026-10-26

Publisher (CNA): Fortinet, Inc. · Vendor: fortinet

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-14 16:16 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

fortinet fortisoar UPGRADE

Affected: >= 7.3.0 and < 7.5.3 · >= 7.6.0 and < 7.6.4

Fixed in: 7.5.3, 7.6.4

Safe to downgrade to: a release before 7.3.0

1. Check installed version

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

2. UPGRADE to 7.5.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fortisoar

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 7.3.0 (Debian / Ubuntu)

apt-cache madison fortisoar sudo apt install fortisoar=<VERSION_BEFORE_7.3.0> sudo apt-mark hold fortisoar

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

dnf --showduplicates list fortisoar sudo dnf downgrade fortisoar-<VERSION_BEFORE_7.3.0> sudo dnf versionlock add fortisoar

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-2026-21742?

fortisoar: upgrade to 7.5.3, 7.6.4. Exact commands for each OS are on this page.

Is CVE-2026-21742 being exploited?

CVE-2026-21742 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-2026-21742 affect?

CVE-2026-21742 affects fortisoar. Severity is medium (CVSS 5.7). A cleartext transmission of sensitive information vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3, FortiSOAR PaaS 7.5.0 through 7.5.2, FortiSOAR PaaS 7.4 all versions, FortiSOAR PaaS 7.3 all versions, FortiSOAR on-premise 7.6.0

How urgent is CVE-2026-21742?

Priority 21/100. No elevated risk signals yet.

Software pages

Fortinet vulnerabilities

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References

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