CVE-2026-57997

MEDIUMNVD 5.44.8▼
EchelonGraph scoreHIGH confidence

Score 4.8 from GitHub Security Advisory published 2026-06-30. NVD baseline CVSS 5.4; sources differ by 0.6.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Strapi users-permissions plugin fails to restrict JWT algorithms when plugin::users-permissions.jwt.algorithm is not explicitly configured, allowing acceptance of HS384 and HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass algorithm restrictions and weaken authentication controls.

CVSS v3
5.4
EG Score
4.8(high)
EPSS
4.3%
KEV
Not listed

Published

June 29, 2026

Last Modified

July 1, 2026

Advisory Details (4)

Auto-updated Jun 29, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

Strapi users-permissions - JWT Algorithm Confusion via Missing Algorithm Configuration | Advisories | VulnCheck

https://www.vulncheck.com/advisories/strapi-users-permissions-jwt-algorithm-confusion-via-missing-algorithm-configuration
generic

GitHub - strapi/strapi: 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first. · GitHub

https://github.com/strapi/strapi
github_pr

security(users-permissions): default legacy JWT verify to HS256

Fix merged in strapi/strapi PR #26752 on 2026-06-29 — awaiting tagged release

https://github.com/strapi/strapi/pull/26752
generic

Strapi JWT Algorithm Confusion Vulnerability · Issue #26587 · strapi/strapi · GitHub

https://github.com/strapi/strapi/issues/26587

Vendor Advisories for CVE-2026-57997(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 27× 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.

  1. 2026-07-07 02:17 UTCEG score recompute
  2. 2026-07-07 02:17 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 01:33 UTCEG score recompute
  8. 2026-07-06 01:33 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-05 00:53 UTCEG score recompute
  12. 2026-07-05 00:52 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-04 00:11 UTCEG score recompute
  16. 2026-07-04 00:11 UTCGHSA enrichment
  17. 2026-07-02 23:30 UTCEG score recompute
  18. 2026-07-02 23:30 UTCGHSA enrichment
  19. 2026-07-01 22:49 UTCEG score recompute
  20. 2026-07-01 22:49 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 22:08 UTCEG score recompute
  24. 2026-06-30 22:08 UTCGHSA enrichment
  25. 2026-06-30 20:33 UTCNVD updateCVSS v3 → 5.4
Show 2 more
  1. 2026-06-29 21:27 UTCEG score recompute
  2. 2026-06-29 21:27 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-57997?
CVE-2026-57997 is a medium vulnerability published on June 29, 2026. Strapi users-permissions plugin fails to restrict JWT algorithms when plugin::users-permissions.jwt.algorithm is not explicitly configured, allowing acceptance of HS384 and HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass…
When was CVE-2026-57997 disclosed?
CVE-2026-57997 was first published in the National Vulnerability Database on June 29, 2026, with the most recent update on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57997 actively exploited?
CVE-2026-57997 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57997?
CVE-2026-57997 has a CVSS v3 base score of 5.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 4.8.
How do I remediate CVE-2026-57997?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57997, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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