VulnerabilityPublished 7 Jul 2026Updated 8 Nov 2026

CVE-2026-59704: Cap · Missing Authorization

Affects CapSource CVE Database V5

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Public exploit available · CVSS 7.1 High.

Data as of 8 Nov 2026, 14:35 UTC

CVSS 4.0 base score

7.1High

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (VulnCheck)	CVSS 4.0	7.1
CNA (VulnCheck)	CVSS 3.1	7.1

Exploitation: Proof of concept is public or traded
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, 2026-07-08.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: High
Vulnerable system integrity: Low
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: High: There is a total loss of confidentiality, resulting in all information within the Vulnerable System being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

Disclosed: evidence found.
CVE published 7 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CISA SSVC: proof of concept public
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

CVE ID reserved
by VulnCheck
6 Jul 202615:31 UTC, 31 hours before disclosure
CVE published
on cve.org
7 Jul 202622:18 UTC, t = 0
CISA SSVC assessment
proof of concept public
8 Jul 202613:02 UTC, 15 hours after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA SSVC, the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
CapCap	Affected =0	Fixed in–
GitHubCap`pkg:github/Cap`Other threats	Affected =0	Fixed in–

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AI-suggested

Since this is a missing authorization vulnerability, remediation requires implementing proper access control checks to verify user ownership or membership before returning video AI metadata or allowing AI generation. Until a fix is available, restrict access to the affected endpoint to trusted users or disable the endpoint if possible.

Description

CVE-2026-59704 is a vulnerability in Cap's GET /api/video/ai endpoint where the system fails to verify user ownership or membership before disclosing private AI-generated video metadata. Authenticated attackers can access sensitive content such as titles, summaries, and chapters of videos they do not own. Additionally, attackers can trigger unauthorized AI generation that consumes the video owner's credits without their consent.

Impact

An attacker with authentication can read sensitive AI-generated metadata of videos they do not own, potentially exposing private information. They can also cause unauthorized AI generation that depletes the video owner's credits, leading to financial or resource loss for the owner. There is no indication of remote code execution or system compromise beyond unauthorized data access and credit consumption.

Summary

The vulnerability in Cap's GET /api/video/ai endpoint arises from missing authorization checks. The endpoint does not validate whether the requesting user owns or is a member authorized to access the video before returning AI-generated metadata. This allows authenticated attackers to supply arbitrary video IDs and retrieve private AI-generated content. Furthermore, attackers can initiate AI generation processes that consume credits belonging to the video owner without permission. The CVSS 4.0 score is 7.1, indicating a high severity due to network attack vector, low attack complexity, and no user interaction required.

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Exploitation evidence

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What to do

Affected software

Description

AI analysisMachine-generated, updated 8 Nov 2026, 14:35 UTC

Technical details

References

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