Cap-go up to 12.128.1 Registered Email missing authentication

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k5.08+

Summaryinfo

A vulnerability described as critical has been identified in Cap-go up to 12.128.1. This vulnerability affects unknown code of the component Registered Email Handler. Executing a manipulation can lead to missing authentication. This vulnerability appears as CVE-2026-53981. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Cap-go up to 12.128.1. This vulnerability affects an unknown code block of the component Registered Email Handler. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Cap-go prior to 12.128.2 contains an account takeover vulnerability in its email change mechanism that allows an attacker with temporary authenticated session access to change the registered email address without re-authentication such as password or MFA verification. Attackers can redirect verification to an attacker-controlled email address and subsequently perform a password reset to permanently take over the victim's account.

The weakness was presented by Naitik Gupta as GHSA-w56g-jv78-hf79. The advisory is shared for download at github.com. This vulnerability was named CVE-2026-53981 since 06/11/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 12.128.2 eliminates this vulnerability. Applying the patch 6685e5f11adef257bf3d085e481f4d8ebcec602e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-36496). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.6
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Cap-go 12.128.2
Patch: 6685e5f11adef257bf3d085e481f4d8ebcec602e

Timelineinfo

06/11/2026 CVE reserved
06/12/2026 +1 days Advisory disclosed
06/12/2026 +0 days VulDB entry created
06/12/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-w56g-jv78-hf79
Researcher: Naitik Gupta
Status: Confirmed

CVE: CVE-2026-53981 (🔒)
GCVE (CVE): GCVE-0-2026-53981
GCVE (VulDB): GCVE-100-370648
EUVD: 🔒

Entryinfo

Created: 06/12/2026 19:33
Updated: 06/12/2026 21:32
Changes: 06/12/2026 19:33 (79), 06/12/2026 21:32 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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