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CVE-2026-105777— Insertion of Sensitive Information Into Sent Data in GitLab

Quick assessment

Affected

GitLab GitLab

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GitLab 已修复 GitLab CE/EE 中的一个漏洞，该漏洞影响 17.6.5 至 19.3.6（不含 19.3.6）、19.4 至 19.4.3（不含 19.4.3）以及 19.5 至 19.5.1（不含 19.5.1）的所有版本。在特定条件下，未经身份验证的用户可能因内部响应头过滤不当而获取敏感的服务器内部凭证。

CVSS 4.3 · Medium Updated Oct 22, 2026

Possible ATT&CK Techniques 1 AI

T1565 · Data Manipulation

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Vulnerability Information

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Vulnerability Title

Insertion of Sensitive Information Into Sent Data in GitLab

Source: CVE Program / CVE List V5

Vulnerability Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

通过发送数据的信息暴露

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
GitLab	GitLab	17.6.5 ~ 19.3.6	`cpe:2.3:a:gitlab:gitlab::::::::`

II. Public POCs for CVE-2026-105777

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-105777

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Other References for CVE-2026-105777 (1)

🔗 Not found

https://www.cve.org/CVERecord?id=CVE-2026-105777

Same Patch Batch · GitLab · 2026-10-21 · 11 CVEs total

CVE-2026-15723	8.2 HIGH	Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in Gi
CVE-2026-112212	7.5 HIGH	Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in GitLab
CVE-2026-12664	6.8 MEDIUM	Incorrect Authorization in GitLab
CVE-2026-16255	5.9 MEDIUM	Incorrect Authorization in GitLab
CVE-2026-13319	4.3 MEDIUM	Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-112378	4.3 MEDIUM	Use of Less Trusted Source in GitLab
CVE-2026-105711	3.5 LOW	Use of Cache Containing Sensitive Information in GitLab
CVE-2026-14288	3.1 LOW	Use of Incorrectly-Resolved Name or Reference in GitLab
CVE-2026-112326	3.1 LOW	Improper Cleanup on Thrown Exception in GitLab
CVE-2026-103515	2.7 LOW	Incorrect Authorization in GitLab

IV. Related Vulnerabilities

Same product: GitLab

Same vendor: GitLab

Same weakness: CWE-201

V. Comments for CVE-2026-105777

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2026-105777— Insertion of Sensitive Information Into Sent Data in GitLab

Quick assessment

Possible ATT&CK Techniques 1 AI

I. Basic Information for CVE-2026-105777

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-105777

III. Intelligence Information for CVE-2026-105777

Other References for CVE-2026-105777 (1)

Same Patch Batch · GitLab · 2026-10-21 · 11 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2026-105777

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