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CVE-2026-40097: Improper Validation of Array Index

🗓️ 10 Apr 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Unauthenticated panic in Step CA 0.24.0-0.30.0-rc3 via empty EKU in TPM attestation.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40097
10 Apr 202616:34
–attackerkb
circl
Circl
CVE-2026-40097
10 Apr 202608:17
–circl
cnnvd
CNNVD
Smallstep step-ca 输入验证错误漏洞
10 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-40097
10 Apr 202616:34
–cve
cvelist
Cvelist
CVE-2026-40097 Step CA affected by an index out of bounds panic in TPM attestation EKU validation
10 Apr 202616:34
–cvelist
euvd
EUVD
EUVD-2026-21506
10 Apr 202620:18
–euvd
fedora
Fedora
[SECURITY] Fedora 44 Update: caddy-2.10.2-9.fc44
2 Jul 202601:11
–fedora
fedora
Fedora
[SECURITY] Fedora 43 Update: caddy-2.10.2-9.fc43
2 Jul 202601:12
–fedora
nessus
Tenable Nessus
Fedora 43 : caddy (2026-3dc324bd9a)
1 Jul 202600:00
–nessus
nessus
Tenable Nessus
Fedora 44 : caddy (2026-950cac64f2)
1 Jul 202600:00
–nessus
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27 Apr 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.13.7
EPSS0.00284
SSVC
0