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CVE-2026-33693

🗓️ 28 Mar 2026 04:56:27Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 18 Views

CVE-2026-33693: Unauthenticated SSRF via 0.0.0.0 in v4_is_invalid() before 0.7.0-beta.9 reaches localhost.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-33693
27 Mar 202600:03
–attackerkb
bdu_fstec
BDU FSTEC
Activitypub-Federation verify_url_valid() XSS
16 Feb 202500:00
–bdu_fstec
circl
Circl
CVE-2025-25194
10 Feb 202518:41
–circl
circl
Circl
CVE-2026-33693
23 Mar 202615:39
–circl
cnnvd
CNNVD
Lemmy code issue vulnerabilities
10 Feb 202500:00
–cnnvd
cnnvd
CNNVD
Lemmy code issue vulnerabilities
27 Mar 202600:00
–cnnvd
cve
CVE
CVE-2025-25194
10 Feb 202522:14
–cve
cve
CVE
CVE-2026-33693
27 Mar 202600:03
–cve
cvelist
Cvelist
CVE-2025-25194 Server-Side Request Forgery (SSRF) in activitypub_federation
10 Feb 202522:14
–cvelist
cvelist
Cvelist
CVE-2026-33693 Lemmy's Activitypub-Federation has SSRF via 0.0.0.0 bypass in activitypub-federation-rust v4_is_invalid()
27 Mar 202600:03
–cvelist
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28 Mar 2026 04:56Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.16.5
EPSS0.00418
SSVC
18