Vulnerability · CVE-2026-55806
Drupal core - Less critical - Cache poisoning and open redirect - SA-CORE-2026-007
Published Jun 17, 2026 · Drupal Drupal
Check if you run it
No confirmed exploitation is on record for CVE-2026-55806. EPSS is 0.34%. Act only if a listed version of Drupal Drupal is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Unknown—
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.34%
- Remediation
- Not established
- Affected products
- Drupal Drupal
CVE-2026-55806 is listed by Drupal core - Less critical - Cache poisoning and open redirect - SA-CORE-2026-007.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-55806
Recommended remediation
No required-action text, fix commit, or clear fixed-version range is stored yet.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-55806. EPSS is 0.34%. Act only if a listed version of Drupal Drupal is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.34%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jun 17, 2026 · Drupal Security
Detected
Project: Drupal core Project machine name: drupal <div cl
Sources
- CVE.orgVulnerability recordCVE-2026-55806
Official CVE identifier
cve.org - Drupal SecurityVendor advisoryCVE-2026-55806
Project: Drupal core Project machine name: drupal <div cl
drupal.org - FIRST EPSSExploitation probabilityCVE-2026-55806
30-day exploitation probability 0.3%
first.org
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.