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CVE-2026-123491VulnerabilityPublished

Craft CMS 4.0.0 before 4.18.9 and 5.0.0 before 5.11.2 contains an SQL injection vulnerability in GraphQL

Source GCVE Database

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Authoritative record:CVE-2026-123491· High 8.8

Not known to be exploited · CVSS 8.8 High : upgrade to 4.18.9 soon.

Data as of 6 Nov 2026, 17:02 UTC

CVSS 4.0 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.08.8
CNA (VulnCheck)CVSS 3.18.2
Patch
Available – fixed in 4.18.9, 5.11.2
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade cms to 4.18.9; cms to 5.11.2.

Affected software

ProductAffectedFixed in
craftcmscmsAffected
  • >=4.0.0 <4.18.9
Fixed in
  • 4.18.9
craftcmscmsAffected
  • >=5.0.0 <5.11.2
Fixed in
  • 5.11.2

AI-suggested

A fix is available in Craft CMS versions 4.18.9 and later for the 4.x branch, and 5.11.2 and later for the 5.x branch. Users should upgrade to these versions to remediate the vulnerability. No additional mitigation steps are indicated.

Description

Craft CMS versions 4.0.0 before 4.18.9 and 5.0.0 before 5.11.2 contain an SQL injection vulnerability in the GraphQL eager-loading feature. This flaw allows unauthenticated attackers to inject SQL expressions via a crafted select argument, potentially exposing sensitive database content such as password hashes and session tokens.

References

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