Server-Side Request Forgery (SSRF) vulnerability in Drupal Drupal core allows Server Side Request Forgery. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*.
CVE-2026-55807
Score 3.1 from GitHub Security Advisory (severity: LOW) published 2026-07-11. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 3.1; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 3.1
- EG Score
- 3.1(high)
- EPSS
- 3.2%
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 13, 2026
References (1)
- mlhess@drupalhttps://www.drupal.org/sa-core-2026-008
Vendor Advisories for CVE-2026-55807(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| drupal/core | 10.0.0 ... 9.5.9 (477 versions) | 11.2.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 10× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-13 23:48 UTCEG score recompute▲ 3.10
- 2026-07-13 23:48 UTCGHSA enrichment
- 2026-07-13 22:31 UTCEPSS rescore
- 2026-07-13 18:27 UTCMITRE cvelistV5CVSS v3 → 3.1 · severity → LOW
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-10 22:19 UTCNVD update
- 2026-07-10 21:52 UTCEG score recompute
- 2026-07-10 21:52 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-918
Frequently asked(5)
What is CVE-2026-55807?
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Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-55807
Is Your Infrastructure Affected by CVE-2026-55807?
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