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CVE-2026-107885

Quick assessment

Affected
OpenPrinting CUPS
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.

OpenPrinting CUPS 2.4.20 及更早版本在 cupsdCheckJobs() 函数的提交超时处理机制中存在资源耗尽漏洞。当任意客户端连接存在正在进行的 Send-Document（发送文档）操作时，调度器会暂停对所有待处理作业的超时处理，且并未将该连接与正在检查的作业进行匹配。 允许访问 IPP 服务的客户端可在操作授权前，持有包含已解析的 Send-Document 头部的未完成 HTTP 请求，从而导致无关的未完成作业无法按预期过期。如果允许执行 Create-Job（创建作业）提交，则未完

CVSS 3.3 · Low
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I. Basic Information for CVE-2026-107885

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
OpenPrinting CUPS through 2.4.20 contains a resource-exhaustion vulnerability in the submission-timeout handling of cupsdCheckJobs(). The scheduler suppresses timeout processing for all pending jobs whenever any client connection has an in-flight Send-Document operation, without matching that connection to the job being examined. A client allowed to reach the IPP service can hold an incomplete HTTP request containing parsed Send-Document headers before operation authorization, preventing unrelated incomplete jobs from expiring. Where Create-Job submission is allowed, incomplete jobs can accumulate until MaxJobs is exhausted and further legitimate print submissions are rejected. The suppression ends when the held connection closes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenPrinting CUPS 0 ~ 2.4.20 -

II. Public POCs for CVE-2026-107885

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III. Intelligence Information for CVE-2026-107885

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Other References for CVE-2026-107885 (1)

Same Patch Batch · OpenPrinting · 2026-10-09 · 4 CVEs total

CVE-2026-107888 5.1 MEDIUM CUPS<2.4.20空指针解引用致服务终止
CVE-2026-107890 3.3 LOW CUPS漏洞：空指针解引用致服务崩溃
CVE-2026-107886 2.3 LOW CUPS<2.4.20双释放致拒绝服务

IV. Related Vulnerabilities

Same product: CUPS
Same vendor: OpenPrinting
Same weakness: CWE-770

V. Comments for CVE-2026-107885

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