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CVE-2026-34980

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a network-exposed cupsd with a shared target queue, an unauthorized client can send a Print-Job to that shared PostScript queue without authentication. The server accepts a page-border value supplied as textWithoutLanguage, preserves an embedded newline through option escaping and reparse, and then reparses the resulting second-line PPD: text as a trusted schedule
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0a549008fadeb5d724320f9249ed5d850621317918925036146c34a6452d8a1e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"cups","vendor":"OpenPrinting","versions":[{"status":"affected","version":"<= 2.4.16"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8ad39ef57bccc0af1221ba07a00f26359189dba20039726ddc399bd6071e265 · sha256:a84a114605a9f205… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"ADJACENT","baseScore":6.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8ad39ef57bccc0af1221ba07a00f26359189dba20039726ddc399bd6071e265 · sha256:a84a114605a9f205… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8ad39ef57bccc0af1221ba07a00f26359189dba20039726ddc399bd6071e265 · sha256:a84a114605a9f205… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/OpenPrinting/cups/security/advisories/GHSA-4852-v58g-6cwf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OpenPrinting/cups/security/advisories/GHSA-4852-v58g-6cwf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8ad39ef57bccc0af1221ba07a00f26359189dba20039726ddc399bd6071e265 · sha256:a84a114605a9f205… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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