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CVE-2026-41989

Quick assessment

Affected
gnupg Libgcrypt
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.

Libgcrypt是美国GNU社区的一个基于GnuPG代码的通用加密库。该库实现了各种加密算法，包括对称密码、哈希算法、公开密钥算法等。 Libgcrypt 1.12.2之前版本存在缓冲区错误漏洞，该漏洞源于处理特制ECDH密文时可能导致堆缓冲区溢出和拒绝服务。

CVSS 6.7 · Medium EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
gnupg Libgcrypt 1.8.8< 1.10.4 affected
1.11.0< 1.11.3 affected
1.12.0< 1.12.2 affected
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I. Basic Information for CVE-2026-41989

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Libgcrypt 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libgcrypt是美国GNU社区的一个基于GnuPG代码的通用加密库。该库实现了各种加密算法，包括对称密码、哈希算法、公开密钥算法等。 Libgcrypt 1.12.2之前版本存在缓冲区错误漏洞，该漏洞源于处理特制ECDH密文时可能导致堆缓冲区溢出和拒绝服务。
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
gnupg Libgcrypt 1.8.8 ~ 1.10.4 -

II. Public POCs for CVE-2026-41989

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III. Intelligence Information for CVE-2026-41989

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Vendor Advisories for CVE-2026-41989 (1)

Mailing List Discussions for CVE-2026-41989 (2)

IV. Related Vulnerabilities

Same product: Libgcrypt
Same vendor: gnupg
Same weakness: CWE-787

V. Comments for CVE-2026-41989

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