CVE-2026-57997: strapi · Weak Cryptography
Affects strapiSource CVE Database V5
Not known to be exploited · CVSS 6.3 Medium : upgrade to 5.7.0 when convenient.
Data as of 8 Nov 2026, 14:36 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 6.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 4.8 |
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-07-01.
- Patch
- Available – fixed in 5.7.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 8 Nov 2026.
What to do
Upgrade strapi to 5.7.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| strapistrapi | Affected
| Fixed in
|
npmstrapipkg:npm/strapiOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Strapi to version 5.7.0 or later, where this vulnerability is fixed. Ensure that the plugin::users-permissions.jwt.algorithm configuration is explicitly set to restrict accepted JWT algorithms. Since this is a cloud service, the vendor manages remediation for hosted instances; verify with the vendor that the service is updated accordingly.
Description
CVE-2026-57997 is a vulnerability in the Strapi users-permissions plugin where the JWT algorithm restrictions are not enforced unless explicitly configured. This allows acceptance of HS384 and HS512 tokens in addition to HS256. Attackers with knowledge of the jwtSecret can create tokens using these non-standard HMAC algorithms to bypass authentication controls. The issue affects Strapi versions prior to 5.7.0 and has been fixed in version 5.7.0.