132 results · Feed
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Medium 5.3
OpenPrinting CUPS: root-side banner file disclosure
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.20, copy_banner() in scheduler/ipp.c uses the attacker-controlled IPP attributes-natural-language value as a directory component beneath DataDir/…
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Low 3.3
CUPS ipp backend status-line injection can update queue PPD and lead to conditional RCE as lp via foomatic-rip
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.20, the backend/ipp.c quote_string() function preserves carriage-return and line-feed characters in a remote printer-controlled marker-message be…
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Medium 5.7
CUPS copy_model() creates a predictable PPD tempfile without O_EXCL/O_NOFOLLOW (symlink TOCTOU, lp → root)
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.20, copy_model() in scheduler/ipp.c creates a predictable TempDir/<connection-number>.ppd path in an lp-group-writable directory and opens it as …
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Low 2.5
CUPS fax option values bypass the CVE-2026-34980 control-character sanitizer (incomplete fix)
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.20, the cupsdCreateJob option-string builder in scheduler/job.c maps attacker-controlled destination-uri and pre-dial-string values from a config…
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Medium 4.0
Cups: null pointer dereference via embedded job ticket comments allows remote denial of service
A flaw was found in CUPS. When processing embedded job ticket comments within documents, the service improperly handles specific IPP attributes, causing an unhandled null pointer dereference. An unauthenticated attacker permitted to submit jobs to a shared pr…
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Low 3.3
OpenPrinting CUPS before 2.4.20 contains a NULL pointer dereference caused by repeated IPP group tags in job-creation r…
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Medium 5.1
OpenPrinting CUPS before 2.4.20 contains a NULL pointer dereference in cupsdCheckJobs() when a job marked job-held-on-c…
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Low 2.3
OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify-Class replaces…
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Low 3.3
OpenPrinting CUPS through 2.4.20 contains a resource-exhaustion vulnerability in the submission-timeout handling of cup…
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Low 2.5
Cups: cups: argument injection in mailto notifier via notify-recipient-uri
An argument injection flaw was found in CUPS. When email notification is configured, the CUPS scheduler accepts printer subscription requests that supply a mailto notify-recipient-uri. The mailto notifier passes the recipient address to the configured sendmai…
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Low 3.0
Cups: openprinting cups: remaining case-insensitive username matching in scheduler side paths (cve-2026-27447 follow-up)
Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler (printer ACL validation and private-attribute filtering) could allow bypass of username-based access controls in certain configurations.
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Medium 4.3
Cups: openprinting cups: heap out-of-bounds read in cupsutf32toutf8() via missing source-length bound
The cupsUTF32ToUTF8() function in CUPS's cups/transcode.c lacks a source-length bound and can read past the end of the source buffer, resulting in a heap out-of-bounds read. This is reachable via SNMP supply-description parsing in backend/snmp-supplies.c with…
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Medium 4.3
OpenPrinting CUPS: Heap out-of-bounds read in SNMP supply-level polling leaks stack memory to authenticated users
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.17, a network-adjacent attacker can send a crafted SNMP response to the CUPS SNMP backend that causes an out-of-bounds read of up to 176 bytes pa…
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Medium 4.0
CUPS has a use-after-free in `cupsdDeleteTemporaryPrinters` via dangling subscription pointer
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when temporary printers are automatically deleted. cupsdDele…
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Medium 4.0
CUPS has an integer underflow in `_ppdCreateFromIPP` causes root cupsd crash via negative `job-password-supported`
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, an integer underflow vulnerability in _ppdCreateFromIPP() (cups/ppd-cache.c) allows any unprivileged local user to crash the cup…
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Medium 6.1CVE-2026-34980 Public exploit
OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over the network
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 que…
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Medium 5.3
OpenPrinting CUPS: Heap overflow in `get_options()`
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, there is a heap-based buffer overflow in the CUPS scheduler when building filter option strings from job attribute. At time of p…
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Medium 6.5
OpenPrinting CUPS: Path traversal in RSS notify-recipient-uri enables file write outside CacheDir/rss (and clobbering of job.cache)
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…
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Medium 5.0CVE-2026-34990 Public exploit
OpenPrinting CUPS: Local print admin token disclosure using temporary printers
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable A…
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Medium 4.8
OpenPrinting CUPS: Authorization bypass via case-insensitive group-member lookup
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, CUPS daemon (cupsd) contains an authorization bypass vulnerability due to case-insensitive username comparison during authorizat…
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Medium 5.1
OpenPrinting CUPS slow client can halt cupsd, leading to a possible DoS attack
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a client that connects to cupsd but sends slow messages, e.g. only one byte per second, delays cupsd as a whole, such that it becomes…
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Medium 6.0
OpenPrinting CUPS vulnerable to stack based out-of-bound write
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a user in the lpadmin group can use the cups web ui to change the config and insert a malicious line. Then the cupsd process which ru…
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Medium 6.5
cups: Remote DoS via null dereference
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12 and earlier, an unsafe deserialization and validation of printer attributes causes null dereference in the libcups library. This is a remot…
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High 8.0CVE-2025-58060 Public exploit
cups has Authentication bypass with AuthType Negotiate
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12 and earlier, when the `AuthType` is set to anything but `Basic`, if the request contains an `Authorization: Basic ...` header, the password…
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High 8.6
libppd's ppdCreatePPDFromIPP2 function does not sanitize IPP attributes when creating the PPD buffer
CUPS is a standards-based, open-source printing system, and `libppd` can be used for legacy PPD file support. The `libppd` function `ppdCreatePPDFromIPP2` does not sanitize IPP attributes when creating the PPD buffer. When used in combination with other funct…
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Medium 4.4
Cupsd Listen arbitrary chmod 0140777
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.8 and earlier, when starting the cupsd server with a Listen configuration item pointing to a symbolic link, the cupsd process can be caused to…
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High 7.0CVE-2023-4504 Public exploit
OpenPrinting CUPS/libppd Postscript Parsing Heap Overflow
Due to failure in validating the length provided by an attacker-crafted PPD PostScript document, CUPS and libppd are susceptible to a heap-based buffer overflow and possibly code execution. This issue has been fixed in CUPS version 2.4.7, released in Septembe…
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Unscored —
An authentication issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.7.7, macO…
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Medium 5.3
CUPS vulnerable to use-after-free in cupsdAcceptClient()
OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been close…
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High 7.5
OpenPrinting CUPS vulnerable to heap buffer overflow
OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability would allow a remote attacker to launch a denial of service (DoS) attack. A buffer overflow vulnerability in the function `format_log_line` …
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Unscored —
A logic issue was addressed with improved state management. This issue is fixed in Security Update 2022-003 Catalina, m…
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Unscored —
An input validation issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.1, Secur…
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Unscored —
A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security …
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Unscored —
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.6, Secur…
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Unscored —
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.6, Secur…
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Unscored —
A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. An app…
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Unscored —
In array_find of array.c, there is a possible out-of-bounds read due to an incorrect bounds check. This could lead to l…
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Unscored —
In ippSetValueTag of ipp.c in Android 8.0, 8.1 and 9, there is a possible out of bounds read due to improper input vali…
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Unscored —
The session cookie generated by the CUPS web interface was easy to guess on Linux, allowing unauthorized scripted acces…
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Unscored —
In macOS High Sierra before 10.13.5, an issue existed in CUPS. This issue was addressed with improved access restrictio…