CVE-2026-42611: Grav is a file-based Web platform

Q: How do I fix CVE-2026-42611?

grav: upgrade to newer than 1.8.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-42611 being exploited?

CVE-2026-42611 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-2026-42611 affect?

CVE-2026-42611 affects grav. Severity is high (CVSS 8.9). Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged (with the ability to create a page) user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information avai

Q: How urgent is CVE-2026-42611?

Priority 42/100. High severity; Public exploit reference

This month

HIGH 8.9UPGRADE

CVE-2026-42611 is a high-severity flaw (CVSS 8.9) affecting grav. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged (with the ability to create a page) user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information available under /admin/config/info whenever a Super Admin visits the page; which can further be chained with the use of admin-nonce to do a complete server compromise (RCE). This vulnerability is fixed in 2.0.0-bet

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.9 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-05-11
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: getgrav

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

Am I affected?

Timeline

2026-05-11 16:17 UTCPublished CVE record published
2026-10-26 18:10 UTCUpdated Record last modified

getgrav grav UPGRADE

Affected: <= 1.8.0 · 2.0.0 beta1

Fixed in: newer than 1.8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.8.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade grav

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-2026-42611?

grav: upgrade to newer than 1.8.0. Exact commands for each OS are on this page.

Is CVE-2026-42611 being exploited?

CVE-2026-42611 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-2026-42611 affect?

CVE-2026-42611 affects grav. Severity is high (CVSS 8.9). Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged (with the ability to create a page) user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information avai

How urgent is CVE-2026-42611?

Priority 42/100. High severity; Public exploit reference

Related CVEs

CVE-2026-42608 CRITICAL 9.1 UPGRADE Grav is a file-based Web platform
CVE-2026-42609 HIGH 8.1 UPGRADE Grav is a file-based Web platform
CVE-2026-42612 HIGH 8.5 UPGRADE Grav is a file-based Web platform
CVE-2026-44738 HIGH 7.7 UPGRADE Grav is a file-based Web platform
CVE-2026-42610 MEDIUM 6.5 UPGRADE Grav is a file-based Web platform

References

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