CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-34978

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, the RSS notifier allows .. path traversal in notify-recipient-uri (e.g., rss:///../job.cache), letting a remote IPP client write RSS XML bytes outside CacheDir/rss (anywhere that is lp-writable). In particular, because CacheDir is group-writable by default (typically root:lp and mode 0770), the notifier (running as lp) can replace root-managed state files via temp-file + rename(). This PoC clobbers CacheDir/job.cache with RSS XML, and after restarting cupsd the scheduler fails to parse the job cache and previously queued jobs disappear. At time of publication, there are no publicly available patches.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.001

EPSS Ranking 22.7%

CVSS Severity

CVSS v3 Score 6.5

References

Products affected by CVE-2026-34978

Openprinting » Cups » Version: 1.0

cpe:2.3:a:openprinting:cups:1.0
Openprinting » Cups » Version: 1.0.1

cpe:2.3:a:openprinting:cups:1.0.1
Openprinting » Cups » Version: 1.0.2

cpe:2.3:a:openprinting:cups:1.0.2
Openprinting » Cups » Version: 1.0.3

cpe:2.3:a:openprinting:cups:1.0.3
Openprinting » Cups » Version: 1.0.4

cpe:2.3:a:openprinting:cups:1.0.4
Openprinting » Cups » Version: 1.0.5

cpe:2.3:a:openprinting:cups:1.0.5
Openprinting » Cups » Version: 1.1

cpe:2.3:a:openprinting:cups:1.1
Openprinting » Cups » Version: 1.1.1

cpe:2.3:a:openprinting:cups:1.1.1
Openprinting » Cups » Version: 1.1.10

cpe:2.3:a:openprinting:cups:1.1.10
Openprinting » Cups » Version: 1.1.10.1

cpe:2.3:a:openprinting:cups:1.1.10.1
Openprinting » Cups » Version: 1.1.11

cpe:2.3:a:openprinting:cups:1.1.11
Openprinting » Cups » Version: 1.1.12

cpe:2.3:a:openprinting:cups:1.1.12
Openprinting » Cups » Version: 1.1.13

cpe:2.3:a:openprinting:cups:1.1.13
Openprinting » Cups » Version: 1.1.14

cpe:2.3:a:openprinting:cups:1.1.14
Openprinting » Cups » Version: 1.1.15

cpe:2.3:a:openprinting:cups:1.1.15
Openprinting » Cups » Version: 1.1.15.1

cpe:2.3:a:openprinting:cups:1.1.15.1
Openprinting » Cups » Version: 1.1.16

cpe:2.3:a:openprinting:cups:1.1.16
Openprinting » Cups » Version: 1.1.17

cpe:2.3:a:openprinting:cups:1.1.17
Openprinting » Cups » Version: 1.1.18

cpe:2.3:a:openprinting:cups:1.1.18
Openprinting » Cups » Version: 1.1.19

cpe:2.3:a:openprinting:cups:1.1.19
Openprinting » Cups » Version: 1.1.2

cpe:2.3:a:openprinting:cups:1.1.2
Openprinting » Cups » Version: 1.1.2.3

cpe:2.3:a:openprinting:cups:1.1.2.3
Openprinting » Cups » Version: 1.1.20

cpe:2.3:a:openprinting:cups:1.1.20
Openprinting » Cups » Version: 1.1.21

cpe:2.3:a:openprinting:cups:1.1.21
Openprinting » Cups » Version: 1.1.22

cpe:2.3:a:openprinting:cups:1.1.22
Openprinting » Cups » Version: 1.1.23

cpe:2.3:a:openprinting:cups:1.1.23
Openprinting » Cups » Version: 1.1.3

cpe:2.3:a:openprinting:cups:1.1.3
Openprinting » Cups » Version: 1.1.4

cpe:2.3:a:openprinting:cups:1.1.4
Openprinting » Cups » Version: 1.1.5

cpe:2.3:a:openprinting:cups:1.1.5
Openprinting » Cups » Version: 1.1.5.1

cpe:2.3:a:openprinting:cups:1.1.5.1
Openprinting » Cups » Version: 1.1.5.2

cpe:2.3:a:openprinting:cups:1.1.5.2
Openprinting » Cups » Version: 1.1.6

cpe:2.3:a:openprinting:cups:1.1.6
Openprinting » Cups » Version: 1.1.6.1

cpe:2.3:a:openprinting:cups:1.1.6.1
Openprinting » Cups » Version: 1.1.6.2

cpe:2.3:a:openprinting:cups:1.1.6.2
Openprinting » Cups » Version: 1.1.6.3

cpe:2.3:a:openprinting:cups:1.1.6.3
Openprinting » Cups » Version: 1.1.7

cpe:2.3:a:openprinting:cups:1.1.7
Openprinting » Cups » Version: 1.1.8

cpe:2.3:a:openprinting:cups:1.1.8
Openprinting » Cups » Version: 1.1.9

cpe:2.3:a:openprinting:cups:1.1.9
Openprinting » Cups » Version: 1.1.9.1

cpe:2.3:a:openprinting:cups:1.1.9.1
Openprinting » Cups » Version: 1.2.0

cpe:2.3:a:openprinting:cups:1.2.0
Openprinting » Cups » Version: 1.2.1

cpe:2.3:a:openprinting:cups:1.2.1
Openprinting » Cups » Version: 1.2.10

cpe:2.3:a:openprinting:cups:1.2.10
Openprinting » Cups » Version: 1.2.11

cpe:2.3:a:openprinting:cups:1.2.11
Openprinting » Cups » Version: 1.2.12

cpe:2.3:a:openprinting:cups:1.2.12
Openprinting » Cups » Version: 1.2.2

cpe:2.3:a:openprinting:cups:1.2.2
Openprinting » Cups » Version: 1.2.3

cpe:2.3:a:openprinting:cups:1.2.3
Openprinting » Cups » Version: 1.2.4

cpe:2.3:a:openprinting:cups:1.2.4
Openprinting » Cups » Version: 1.2.5

cpe:2.3:a:openprinting:cups:1.2.5
Openprinting » Cups » Version: 1.2.6

cpe:2.3:a:openprinting:cups:1.2.6
Openprinting » Cups » Version: 1.2.7

cpe:2.3:a:openprinting:cups:1.2.7
Openprinting » Cups » Version: 1.2.8

cpe:2.3:a:openprinting:cups:1.2.8
Openprinting » Cups » Version: 1.2.9

cpe:2.3:a:openprinting:cups:1.2.9
Openprinting » Cups » Version: 1.3.0

cpe:2.3:a:openprinting:cups:1.3.0
Openprinting » Cups » Version: 1.3.10

cpe:2.3:a:openprinting:cups:1.3.10
Openprinting » Cups » Version: 1.3.11

cpe:2.3:a:openprinting:cups:1.3.11
Openprinting » Cups » Version: 1.3.2

cpe:2.3:a:openprinting:cups:1.3.2
Openprinting » Cups » Version: 1.3.3

cpe:2.3:a:openprinting:cups:1.3.3
Openprinting » Cups » Version: 1.3.4

cpe:2.3:a:openprinting:cups:1.3.4
Openprinting » Cups » Version: 1.3.5

cpe:2.3:a:openprinting:cups:1.3.5
Openprinting » Cups » Version: 1.3.6

cpe:2.3:a:openprinting:cups:1.3.6
Openprinting » Cups » Version: 1.3.7

cpe:2.3:a:openprinting:cups:1.3.7
Openprinting » Cups » Version: 1.3.8

cpe:2.3:a:openprinting:cups:1.3.8
Openprinting » Cups » Version: 1.3.9

cpe:2.3:a:openprinting:cups:1.3.9
Openprinting » Cups » Version: 1.4.0

cpe:2.3:a:openprinting:cups:1.4.0
Openprinting » Cups » Version: 1.4.1

cpe:2.3:a:openprinting:cups:1.4.1
Openprinting » Cups » Version: 1.4.2

cpe:2.3:a:openprinting:cups:1.4.2
Openprinting » Cups » Version: 1.4.3

cpe:2.3:a:openprinting:cups:1.4.3
Openprinting » Cups » Version: 1.4.4

cpe:2.3:a:openprinting:cups:1.4.4
Openprinting » Cups » Version: 1.4.5

cpe:2.3:a:openprinting:cups:1.4.5
Openprinting » Cups » Version: 1.4.6

cpe:2.3:a:openprinting:cups:1.4.6
Openprinting » Cups » Version: 1.4.7

cpe:2.3:a:openprinting:cups:1.4.7
Openprinting » Cups » Version: 1.4.8

cpe:2.3:a:openprinting:cups:1.4.8
Openprinting » Cups » Version: 1.5.0

cpe:2.3:a:openprinting:cups:1.5.0
Openprinting » Cups » Version: 1.5.1

cpe:2.3:a:openprinting:cups:1.5.1
Openprinting » Cups » Version: 1.5.2

cpe:2.3:a:openprinting:cups:1.5.2
Openprinting » Cups » Version: 1.5.3

cpe:2.3:a:openprinting:cups:1.5.3
Openprinting » Cups » Version: 1.5.4

cpe:2.3:a:openprinting:cups:1.5.4
Openprinting » Cups » Version: 1.6.0

cpe:2.3:a:openprinting:cups:1.6.0
Openprinting » Cups » Version: 1.6.1

cpe:2.3:a:openprinting:cups:1.6.1
Openprinting » Cups » Version: 1.6.2

cpe:2.3:a:openprinting:cups:1.6.2
Openprinting » Cups » Version: 1.6.3

cpe:2.3:a:openprinting:cups:1.6.3
Openprinting » Cups » Version: 1.6.4

cpe:2.3:a:openprinting:cups:1.6.4
Openprinting » Cups » Version: 1.7.0

cpe:2.3:a:openprinting:cups:1.7.0
Openprinting » Cups » Version: 1.7.1

cpe:2.3:a:openprinting:cups:1.7.1
Openprinting » Cups » Version: 1.7.2

cpe:2.3:a:openprinting:cups:1.7.2
Openprinting » Cups » Version: 1.7.3

cpe:2.3:a:openprinting:cups:1.7.3
Openprinting » Cups » Version: 1.7.4

cpe:2.3:a:openprinting:cups:1.7.4
Openprinting » Cups » Version: 1.7.5

cpe:2.3:a:openprinting:cups:1.7.5
Openprinting » Cups » Version: 2.0.0

cpe:2.3:a:openprinting:cups:2.0.0
Openprinting » Cups » Version: 2.0.1

cpe:2.3:a:openprinting:cups:2.0.1
Openprinting » Cups » Version: 2.0.2

cpe:2.3:a:openprinting:cups:2.0.2
Openprinting » Cups » Version: 2.0.3

cpe:2.3:a:openprinting:cups:2.0.3
Openprinting » Cups » Version: 2.0.4

cpe:2.3:a:openprinting:cups:2.0.4
Openprinting » Cups » Version: 2.1.0

cpe:2.3:a:openprinting:cups:2.1.0
Openprinting » Cups » Version: 2.1.2

cpe:2.3:a:openprinting:cups:2.1.2
Openprinting » Cups » Version: 2.1.3

cpe:2.3:a:openprinting:cups:2.1.3
Openprinting » Cups » Version: 2.1.4

cpe:2.3:a:openprinting:cups:2.1.4
Openprinting » Cups » Version: 2.2.0

cpe:2.3:a:openprinting:cups:2.2.0
Openprinting » Cups » Version: 2.2.1

cpe:2.3:a:openprinting:cups:2.2.1
Openprinting » Cups » Version: 2.2.10

cpe:2.3:a:openprinting:cups:2.2.10
Openprinting » Cups » Version: 2.2.11

cpe:2.3:a:openprinting:cups:2.2.11
Openprinting » Cups » Version: 2.2.12

cpe:2.3:a:openprinting:cups:2.2.12
Openprinting » Cups » Version: 2.2.13

cpe:2.3:a:openprinting:cups:2.2.13
Openprinting » Cups » Version: 2.2.2

cpe:2.3:a:openprinting:cups:2.2.2
Openprinting » Cups » Version: 2.2.3

cpe:2.3:a:openprinting:cups:2.2.3
Openprinting » Cups » Version: 2.2.4

cpe:2.3:a:openprinting:cups:2.2.4
Openprinting » Cups » Version: 2.2.5

cpe:2.3:a:openprinting:cups:2.2.5
Openprinting » Cups » Version: 2.2.6

cpe:2.3:a:openprinting:cups:2.2.6
Openprinting » Cups » Version: 2.2.7

cpe:2.3:a:openprinting:cups:2.2.7
Openprinting » Cups » Version: 2.2.8

cpe:2.3:a:openprinting:cups:2.2.8
Openprinting » Cups » Version: 2.2.9

cpe:2.3:a:openprinting:cups:2.2.9
Openprinting » Cups » Version: 2.3.0

cpe:2.3:a:openprinting:cups:2.3.0
Openprinting » Cups » Version: 2.3.1

cpe:2.3:a:openprinting:cups:2.3.1
Openprinting » Cups » Version: 2.3.3

cpe:2.3:a:openprinting:cups:2.3.3
Openprinting » Cups » Version: 2.4.0

cpe:2.3:a:openprinting:cups:2.4.0
Openprinting » Cups » Version: 2.4.1

cpe:2.3:a:openprinting:cups:2.4.1
Openprinting » Cups » Version: 2.4.10

cpe:2.3:a:openprinting:cups:2.4.10
Openprinting » Cups » Version: 2.4.11

cpe:2.3:a:openprinting:cups:2.4.11
Openprinting » Cups » Version: 2.4.12

cpe:2.3:a:openprinting:cups:2.4.12
Openprinting » Cups » Version: 2.4.13

cpe:2.3:a:openprinting:cups:2.4.13
Openprinting » Cups » Version: 2.4.14

cpe:2.3:a:openprinting:cups:2.4.14
Openprinting » Cups » Version: 2.4.15

cpe:2.3:a:openprinting:cups:2.4.15
Openprinting » Cups » Version: 2.4.2

cpe:2.3:a:openprinting:cups:2.4.2
Openprinting » Cups » Version: 2.4.3

cpe:2.3:a:openprinting:cups:2.4.3
Openprinting » Cups » Version: 2.4.4

cpe:2.3:a:openprinting:cups:2.4.4
Openprinting » Cups » Version: 2.4.5

cpe:2.3:a:openprinting:cups:2.4.5
Openprinting » Cups » Version: 2.4.6

cpe:2.3:a:openprinting:cups:2.4.6
Openprinting » Cups » Version: 2.4.7

cpe:2.3:a:openprinting:cups:2.4.7
Openprinting » Cups » Version: 2.4.8

cpe:2.3:a:openprinting:cups:2.4.8
Openprinting » Cups » Version: 2.4.9

cpe:2.3:a:openprinting:cups:2.4.9

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-34978

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