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CVE-2026-11481— yoanbernabeu grepai Postgres Embedding Cache chunker.go PostgresStore.LookupByContentHash weak hash

Quick assessment

Affected
yoanbernabeu grepai
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.

grepai是Yoan Bernabeu个人开发者的一款基于语义搜索的代码理解工具。 grepai 0.35.0版本存在加密问题漏洞，该漏洞源于Postgres嵌入缓存组件中文件indexer/chunker.go的PostgresStore.LookupByContentHash函数对参数content_hash操作不当，可能导致使用弱哈希。攻击者需本地利用，且攻击复杂度高。

CVSS 2.5 · Low EPSS 0.08% · P0

Possible ATT&CK Techniques 1 AI

T1565.001 · Stored Data Manipulation

Affected Version Matrix 35

VendorProduct Version RangeStatus
yoanbernabeu grepai 0.1 affected
0.2 affected
0.3 affected
0.4 affected
0.5 affected
0.6 affected
0.7 affected
0.8 affected
… +27 more rows
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I. Basic Information for CVE-2026-11481

Vulnerability Information
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Vulnerability Title
yoanbernabeu grepai Postgres Embedding Cache chunker.go PostgresStore.LookupByContentHash weak hash
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in yoanbernabeu grepai up to 0.35.0. The affected element is the function PostgresStore.LookupByContentHash of the file indexer/chunker.go of the component Postgres Embedding Cache. Executing a manipulation of the argument content_hash can lead to use of weak hash. The attack needs to be launched locally. The attack requires a high level of complexity. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
可逆的单向哈希
Source: CVE Program / CVE List V5
Vulnerability Title
grepai 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
grepai是Yoan Bernabeu个人开发者的一款基于语义搜索的代码理解工具。 grepai 0.35.0版本存在加密问题漏洞，该漏洞源于Postgres嵌入缓存组件中文件indexer/chunker.go的PostgresStore.LookupByContentHash函数对参数content_hash操作不当，可能导致使用弱哈希。攻击者需本地利用，且攻击复杂度高。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
yoanbernabeu grepai 0.1 cpe:2.3:a:yoanbernabeu:grepai:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11481

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III. Intelligence Information for CVE-2026-11481

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Patches & Fixes for CVE-2026-11481 (1)

Proof of Concept for CVE-2026-11481 (1)

IV. Related Vulnerabilities

Same product: grepai
Same vendor: yoanbernabeu
Same weakness: CWE-328

V. Comments for CVE-2026-11481

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