CVE-2026-110927— Openssh: openssh: a compressed payload can expand past the maximum packet size
一分钟漏洞结论
影响对象
Red Hat Red Hat Enterprise Linux 10
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。
A flaw was found in OpenSSH. After compression is negotiated, a compressed payload can expand past the maximum supported packet size because the inflate loop does not stop at that limit. Memory use grows in the process handling that connection.
可能的 ATT&CK 技术 1 AI
T1496 · Resource Hijacking
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一、 漏洞 CVE-2026-110927 基础信息
漏洞信息
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Vulnerability Title
Openssh: openssh: a compressed payload can expand past the maximum packet size
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in OpenSSH. After compression is negotiated, a compressed payload can expand past the maximum supported packet size because the inflate loop does not stop at that limit. Memory use grows in the process handling that connection.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
来源: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images | - |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat Hardened Images | - |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
二、漏洞 CVE-2026-110927 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-110927 其他参考 (2)
同批安全公告 · Red Hat · 2026-10-15 · 共 5 条
| CVE-2026-110923 | 6.5 MEDIUM | Openssh: openssh: sftp can write outside the destination directory from a server-supplied |
| CVE-2026-110925 | 5.4 MEDIUM | Openssh: openssh: '$' and '\' in a command-line username expand through %u |
| CVE-2026-110926 | 5.3 MEDIUM | Openssh: openssh: shared lz77 compression dictionary leaks plaintext across channels |
| CVE-2026-110924 | 4.8 MEDIUM | Openssh: openssh: gssapi delegated credentials can be stored after a failed authentication |
IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 10
-
CVE-2026-110924
Openssh: openssh: gssapi delegated credentials can be stored -
CVE-2026-110926
Openssh: openssh: shared lz77 compression dictionary leaks p -
CVE-2026-110925
Openssh: openssh: '$' and '\' in a command-line username exp -
CVE-2026-110923
Openssh: openssh: sftp can write outside the destination dir -
CVE-2026-109968
Clevis: clevis: pkcs#11 luks passphrase logged in plaintext
Same vendor: Red Hat
-
CVE-2026-110924
Openssh: openssh: gssapi delegated credentials can be stored -
CVE-2026-110926
Openssh: openssh: shared lz77 compression dictionary leaks p -
CVE-2026-110925
Openssh: openssh: '$' and '\' in a command-line username exp -
CVE-2026-110923
Openssh: openssh: sftp can write outside the destination dir -
CVE-2026-86849
Dpdk: dpdk: integer overflow combined with missing validatio
Same weakness: CWE-770
-
CVE-2026-110843
n8n before 2.41.4 and 2.42.1 Unauthenticated Unbounded OAuth -
CVE-2026-109527
Model Context Protocol Python SDK HTTP and OAuth endpoints a -
CVE-2026-108395
Model Context Protocol Java SDK HTTP server transports allow -
CVE-2026-102048
Junos OS: An attacker causes l2cpd crash when FNP is used wi -
CVE-2026-101971
Junos OS and Junos OS Evolved: An attacker causes routing pr
V. Comments for CVE-2026-110927
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