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CVE-2026-5260— GnuTLS 安全漏洞

一分钟漏洞结论

影响对象
CVE-2026-5260
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

GnuTLS是GnuTLS开源的一款免费的用于实现SSL、TLS和DTLS协议的安全通信库。 GnuTLS libgnutls存在安全漏洞，该漏洞源于RSA密钥交换期间发送极短预主密钥，可能导致堆缓冲区过度读取，进而导致信息泄露。

CVSS 8.2 · High EPSS 0.95% · P60

影响版本矩阵 43

厂商产品 版本范围状态
None None affected
Red Hat Cert Manager support for Red Hat OpenShift release 1.20 1790598593< * unaffected
Red Hat Red Hat Discovery 2 1782159791< * unaffected
1782166952< * unaffected
Red Hat Red Hat Enterprise Linux 10 0:3.8.10-4.el10_2< * unaffected
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:3.8.9-9.el10_0.19< * unaffected
Red Hat Red Hat Enterprise Linux 6 全部 unknown
Red Hat Red Hat Enterprise Linux 7 全部 unaffected
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.6< * unaffected
0:3.6.16-8.el8_10.6< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:3.6.14-10.el8_4.1< * unaffected
0:4.13-3.el8_4.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:3.6.14-10.el8_4.1< * unaffected
0:4.13-3.el8_4.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:3.6.16-5.el8_6.5< * unaffected
0:4.13-3.el8_6.2< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:3.6.16-5.el8_6.5< * unaffected
0:4.13-3.el8_6.2< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:3.6.16-7.el8_8.4< * unaffected
0:4.13-4.el8_8.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:3.6.16-7.el8_8.4< * unaffected
0:4.13-4.el8_8.1< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:3.8.10-4.el9_8< * unaffected
0:3.8.10-4.el9_8< * unaffected
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:3.7.6-21.el9_2.7< * unaffected
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:3.8.3-4.el9_4.6< * unaffected
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:3.8.3-6.el9_6.4< * unaffected
Red Hat Red Hat Hardened Images 3.8.13-1.hum1< * unaffected
Red Hat Red Hat OpenShift Container Platform 4 全部 affected
全部 affected
Red Hat Red Hat OpenShift Container Platform 4.12 412.86.202608241157-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202609111941-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202608150307-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202608250221-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202608142238-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.19 4.19.9.6.202607151909-0< * unaffected
Red Hat Red Hat Update Infrastructure 5 1781525684< * unaffected
1781525671< * unaffected
1781525693< * unaffected
1781525739< * unaffected
1787241211< * unaffected
1787135742< * unaffected
1787241260< * unaffected

一、 漏洞 CVE-2026-5260 基础信息

漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
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Vulnerability Title
Gnutls: gnutls: information disclosure via heap overread in rsa key exchange
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
缓冲区上溢读取
来源: CVE Program / CVE List V5
Vulnerability Title
GnuTLS 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
GnuTLS是GnuTLS开源的一款免费的用于实现SSL、TLS和DTLS协议的安全通信库。 GnuTLS libgnutls存在安全漏洞，该漏洞源于RSA密钥交换期间发送极短预主密钥，可能导致堆缓冲区过度读取，进而导致信息泄露。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
- - 0 -
Red Hat Red Hat Enterprise Linux 10 0:3.8.10-4.el10_2 ~ * cpe:/o:redhat:enterprise_linux:10.2
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:3.8.9-9.el10_0.19 ~ * cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.6 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8 0:3.6.16-8.el8_10.6 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:3.6.14-10.el8_4.1 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:4.13-3.el8_4.1 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:3.6.14-10.el8_4.1 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:4.13-3.el8_4.1 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:3.6.16-5.el8_6.5 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:4.13-3.el8_6.2 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:3.6.16-5.el8_6.5 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:4.13-3.el8_6.2 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:3.6.16-7.el8_8.4 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:4.13-4.el8_8.1 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:3.6.16-7.el8_8.4 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:4.13-4.el8_8.1 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 9 0:3.8.10-4.el9_8 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9 0:3.8.10-4.el9_8 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:3.7.6-21.el9_2.7 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:3.8.3-4.el9_4.6 ~ * cpe:/a:redhat:rhel_e4s:9.4::appstream
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:3.8.3-6.el9_6.4 ~ * cpe:/a:redhat:rhel_eus:9.6::appstream
Red Hat Red Hat OpenShift Container Platform 4.12 412.86.202608241157-0 ~ * cpe:/a:redhat:openshift:4.12::el8
Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202609111941-0 ~ * cpe:/a:redhat:openshift:4.14::el9
Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202608150307-0 ~ * cpe:/a:redhat:openshift:4.16::el9
Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202608250221-0 ~ * cpe:/a:redhat:openshift:4.17::el9
Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202608142238-0 ~ * cpe:/a:redhat:openshift:4.18::el9
Red Hat Red Hat OpenShift Container Platform 4.19 4.19.9.6.202607151909-0 ~ * cpe:/a:redhat:openshift:4.19::el9
Red Hat Cert Manager support for Red Hat OpenShift release 1.20 1790598593 ~ * cpe:/a:redhat:cert_manager:1.20::el9
Red Hat Red Hat Discovery 2 1782159791 ~ * cpe:/a:redhat:discovery:2::el9

二、漏洞 CVE-2026-5260 的公开POC

# POC 描述 源链接 神龙链接
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三、漏洞 CVE-2026-5260 的情报信息

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CVE-2026-5260 厂商安全公告 (21)

CVE-2026-5260 其他参考 (4)

IV. Related Vulnerabilities

Same weakness: CWE-126

V. Comments for CVE-2026-5260

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