PatchTheCVECVE-2026-29205: Incorrect privileges management and insufficient path filtering allow to read arbitrary file on the server via
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HIGH 8.6REMOTEUPGRADEUPGRADEUPGRADE
CVE-2026-29205 is a high-severity flaw (CVSS 8.6) affecting cpanel, wp squared, whm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Incorrect privileges management and insufficient path filtering allow to read arbitrary file on the server via the cpdavd attachment download endpoints.
Why this priority
- High severity
- EPSS top 5%: very likely to be exploited
- 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 | 8.4% (top 5%) |
| CISA exploited list | No |
| Weakness | CWE-250 |
| Published | 2026-05-13 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
cpanel cpanel UPGRADE
Affected: >= 120.0.0 and < 124.0.38 · >= 126.0.0 and < 126.0.59 · >= 130.0.0 and < 130.0.23 · >= 130.0.23 and < 130.0.23 · >= 132.0.0 and < 132.0.32 · >= 134.0.0 and < 134.0.26 · >= 136.0.0 and < 136.0.10
Fixed in: 124.0.38, 126.0.59, 130.0.23, 132.0.32, 134.0.26, 136.0.10
Safe to downgrade to: a release before 120.0.0
1. Check installed version
apt-cache policy cpanel || rpm -q cpanel || cpanel --version
2. UPGRADE to 124.0.38 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade cpanel
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade cpanel
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 120.0.0 (Debian / Ubuntu)
apt-cache madison cpanel
sudo apt install cpanel=<VERSION_BEFORE_120.0.0>
sudo apt-mark hold cpanel
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list cpanel
sudo dnf downgrade cpanel-<VERSION_BEFORE_120.0.0>
sudo dnf versionlock add cpanel
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.
cpanel wp squared UPGRADE
Affected: >= 120.1.0 and < 136.1.12
Fixed in: 136.1.12
Safe to downgrade to: a release before 120.1.0
1. Check installed version
apt-cache policy wp-squared || rpm -q wp-squared || wp-squared --version
2. UPGRADE to 136.1.12 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade wp-squared
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade wp-squared
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 120.1.0 (Debian / Ubuntu)
apt-cache madison wp-squared
sudo apt install wp-squared=<VERSION_BEFORE_120.1.0>
sudo apt-mark hold wp-squared
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list wp-squared
sudo dnf downgrade wp-squared-<VERSION_BEFORE_120.1.0>
sudo dnf versionlock add wp-squared
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.
cpanel whm UPGRADE
Affected: >= 120.0.0 and < 124.0.38 · >= 126.0.0 and < 126.0.59 · >= 130.0.0 and < 130.0.23 · >= 132.0.0 and < 132.0.32 · >= 134.0.0 and < 134.0.26 · >= 136.0.0 and < 136.0.10
Fixed in: 124.0.38, 126.0.59, 130.0.23, 132.0.32, 134.0.26, 136.0.10
Safe to downgrade to: a release before 120.0.0
1. Check installed version
apt-cache policy whm || rpm -q whm || whm --version
2. UPGRADE to 124.0.38 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade whm
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade whm
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 120.0.0 (Debian / Ubuntu)
apt-cache madison whm
sudo apt install whm=<VERSION_BEFORE_120.0.0>
sudo apt-mark hold whm
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list whm
sudo dnf downgrade whm-<VERSION_BEFORE_120.0.0>
sudo dnf versionlock add whm
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.
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-2026-29205?
cpanel: upgrade to 124.0.38, 126.0.59, 130.0.23, 132.0.32, 134.0.26, 136.0.10; wp squared: upgrade to 136.1.12; whm: upgrade to 124.0.38, 126.0.59, 130.0.23, 132.0.32, 134.0.26, 136.0.10. Exact commands for each OS are on this page.
Is CVE-2026-29205 being exploited?
CVE-2026-29205 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-2026-29205 affect?
CVE-2026-29205 affects cpanel, wp squared, whm. Severity is high (CVSS 8.6). Incorrect privileges management and insufficient path filtering allow to read arbitrary file on the server via the cpdavd attachment download endpoints.
How urgent is CVE-2026-29205?
Priority 59/100. High severity; EPSS top 5%: very likely to be exploited; Remotely exploitable, no login, no user action
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