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WWBN AVideo CVE-2026-82648

| EUVDEUVD-2026-68234 HIGH
Improper Input Validation (CWE-20)
2026-08-30 VulnCheck GHSA-4743-4j8m-92f3
SSRF Avideo
7.1
CVSS 4.0 · Vendor: VulnCheck
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Vendor (VulnCheck) PRIMARY
7.1 HIGH
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.1 HIGH

Network-reachable SSRF bypass requires low-privilege auth (PR:L) and specific cloud conditions (AC:H); scope change (S:C) reflects credential exfiltration impacting cloud infrastructure beyond AVideo itself.

3.1 AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
4.0 AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

2
CVE Published
Aug 31, 2026 - 10:50 cve.org
HIGH 7.1
Analysis Generated
Aug 30, 2026 - 15:02 vuln.today

DescriptionCVE.org

WWBN AVideo contains a server-side request forgery filter bypass vulnerability in the isSSRFSafeURL function that fails to normalize NAT64 addresses written in hexadecimal form. Attackers can bypass SSRF protections by supplying hex-encoded NAT64 addresses like 64:ff9b::a9fe:a9fe to reach cloud metadata services and loopback interfaces.

AnalysisAI

SSRF filter bypass in WWBN AVideo exposes cloud metadata services and loopback interfaces to authenticated low-privilege attackers. The isSSRFSafeURL function fails to normalize IPv6 NAT64 addresses rendered in hexadecimal notation, allowing crafted URLs such as 64:ff9b::a9fe:a9fe to resolve to protected addresses like 169.254.169.254 while evading the SSRF blocklist. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid authenticated session with at least a low-privilege AVideo account (PR:L). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:H/AT:P/PR:L) signals that exploitation is network-reachable but constrained by high complexity and specific attack prerequisites - mass automated exploitation is unlikely. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Consult the GitHub Security Advisory at https://github.com/WWBN/AVideo/security/advisories/GHSA-88jm-rxg9-3v5r for the official patch; no exact fixed version was present in the provided data, so patch availability per vendor advisory should be verified directly before assuming remediation. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-82648 vulnerability details – vuln.today
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