CVE-2026-103101: Pexip Infinity 30.0 through 40.x before 41.0 is affected by improper input validation in the web server that a

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HIGH 8.6REMOTEUPGRADE

CVE-2026-103101 is a high-severity flaw (CVSS 8.6) affecting pexip infinity. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Pexip Infinity 30.0 through 40.x before 41.0 is affected by improper input validation in the web server that allows a malicious attacker to render a Pexip Infinity node inaccessible.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-770
Published	2026-09-30
Last modified	2026-10-05

Publisher (CNA): MITRE · Vendor: pexip

Last updated 2026-10-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-30 03:16 UTCPublished CVE record published
2026-10-05 20:53 UTCUpdated Record last modified

pexip pexip infinity UPGRADE

Affected: >= 30.0 and < 41.0

Fixed in: 41.0

Safe to downgrade to: a release before 30.0

1. Check installed version

apt-cache policy pexip-infinity || rpm -q pexip-infinity || pexip-infinity --version

2. UPGRADE to 41.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pexip-infinity

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pexip-infinity

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 30.0 (Debian / Ubuntu)

apt-cache madison pexip-infinity sudo apt install pexip-infinity=<VERSION_BEFORE_30.0> sudo apt-mark hold pexip-infinity

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

dnf --showduplicates list pexip-infinity sudo dnf downgrade pexip-infinity-<VERSION_BEFORE_30.0> sudo dnf versionlock add pexip-infinity

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-2026-103101?

pexip infinity: upgrade to 41.0. Exact commands for each OS are on this page.

Is CVE-2026-103101 being exploited?

CVE-2026-103101 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-2026-103101 affect?

CVE-2026-103101 affects pexip infinity. Severity is high (CVSS 8.6). Pexip Infinity 30.0 through 40.x before 41.0 is affected by improper input validation in the web server that allows a malicious attacker to render a Pexip Infinity node inaccessible.

How urgent is CVE-2026-103101?

Priority 40/100. High severity; Remotely exploitable, no login, no user action

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References

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