Debian vulnerabilities
We track 1,111 vulnerabilities in Debian products across 10 products. 1,094 are rated high or critical, and 123 have been exploited in real attacks. The most recent was published on November 6, 2026.
Latest Debian vulnerabilities
- 7.8 High severity
Powerline Gitstatus: Improper Neutralization of Special Elements used in a Command
powerline-gitstatus (aka Powerline Gitstatus) before 1.3.2 allows arbitrary code execution. git repositories can contain per-repository configuration that changes the behavior of git, including running arbitrary commands. When using powerline-gitstatus, changi
- 8.8 High severity
Lava: Improper Control of Generation of Code
In Linaro Automated Validation Architecture (LAVA) before 2022.10, there is dynamic code execution in lava_server/lavatable.py. Due to improper input sanitization, an anonymous user can force the lava-server-gunicorn service to execute user-provided code on th
- 9.8 Critical severity
Loader-utils: Improperly Controlled Modification of Object Prototype Attributes
Prototype pollution vulnerability in function parseQuery in parseQuery.js in webpack loader-utils via the name variable in parseQuery.js. This affects all versions prior to 1.4.1 and 2.0.3.
- 7.5 High severity
Ini4j: Uncontrolled Resource Consumption
An issue in the fetch() method in the BasicProfile class of org.ini4j through version v0.5.4 allows attackers to cause a Denial of Service (DoS) via unspecified vectors.
- 7.0 High severity
Android: Improper Locking
In emulation_proc_handler of armv8_deprecated.c, there is a possible way to corrupt memory due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation
- 7.8 High severity
Android: Use After Free
In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product:
- 9.8 Critical severity
Xmldom: Improperly Controlled Modification of Object Prototype Attributes
A prototype pollution vulnerability exists in the function copy in dom.js in the xmldom (published as @xmldom/xmldom) package before 0.8.3 for Node.js via the p variable. NOTE: the vendor states "we are in the process of marking this report as invalid"; howeve
- 9.8 Critical severity
hsqldb: Use of Externally-Controlled Input to Select Classes or Code
Those using java.sql.Statement or java.sql.PreparedStatement in hsqldb (HyperSQL DataBase) to process untrusted input may be vulnerable to a remote code execution attack. By default it is allowed to call any static method of any Java class in the classpath res
- 7.5 High severity
Jackson-databind: Deserialization of Untrusted Data
In FasterXML jackson-databind before 2.13.4, resource exhaustion can occur because of a lack of a check in BeanDeserializer._deserializeFromArray to prevent use of deeply nested arrays. An application is vulnerable only with certain customized choices for dese
- 7.5 High severity
Jackson-databind: Deserialization of Untrusted Data
In FasterXML jackson-databind before versions 2.13.4.1 and 2.12.17.1, resource exhaustion can occur because of a lack of a check in primitive value deserializers to avoid deep wrapper array nesting, when the UNWRAP_SINGLE_VALUE_ARRAYS feature is enabled.
- 7.5 High severity
Twig: Improper Limitation of a Pathname to a Restricted Directory
Twig is a template language for PHP. Versions 1.x prior to 1.44.7, 2.x prior to 2.15.3, and 3.x prior to 3.4.3 encounter an issue when the filesystem loader loads templates for which the name is a user input. It is possible to use the `source` or `include` sta
- 9.8 Critical severity
joblib: Improper Control of Generation of Code
The package joblib from 0 and before 1.2.0 are vulnerable to Arbitrary Code Execution via the pre_dispatch flag in Parallel() class due to the eval() statement.
- 7.5 High severity
Knot Resolver: Inefficient Algorithmic Complexity
Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
- 7.5 High severity
Apache XML Graphics: Server-Side Request Forgery
Server-Side Request Forgery (SSRF) vulnerability in Batik of Apache XML Graphics allows an attacker to access files using a Jar url. This issue affects Apache XML Graphics Batik 1.14.
- 7.5 High severity
protobuf-cpp: Improper Validation of Syntactic Correctness of Input
A parsing vulnerability for the MessageSet type in the ProtocolBuffers versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 3.21.5 for protobuf-cpp, and versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 4.21.5 for
- 7.5 High severity
BIND9: Missing Release of Memory after Effective Lifetime
By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
- 7.5 High severity
BIND9: Missing Release of Memory after Effective Lifetime
By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
- 8.8 High severity
iOS: Out-of-bounds Write
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in Safari 16, iOS 16, iOS 15.7 and iPadOS 15.7. Processing maliciously crafted web content may lead to arbitrary code execution.
- 7.5 High severity
ModSecurity Core Rule Set: Improper Encoding or Escaping of Output
The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by repeatedly submitting an HTTP Range header field with a small byte range. A restricted resource, access to whi
- 7.5 High severity
ModSecurity Core Rule Set: Improper Encoding or Escaping of Output
The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optional "charset" parameter in order to receive the response in an encoded form. Depending on the "charset", this res
- 9.8 Critical severity
ModSecurity Core Rule Set: Improper Encoding or Escaping of Output
The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character encoding scheme via the Content-Type or the deprecated Content-Transfer-Encoding multipart MIME header
- 9.8 Critical severity
ModSecurity Core Rule Set: Incorrect Authorization
The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field that indicates multiple character encoding schemes. A vulnerable back-end can potentially be exploited by declar
- 9.1 Critical severity
Frrouting: Out-of-bounds Read
An out-of-bounds read in the BGP daemon of FRRouting FRR before 8.4 may lead to a segmentation fault and denial of service. This occurs in bgp_capability_msg_parse in bgpd/bgp_packet.c.
- 7.5 High severity
Mediawiki: Release of Invalid Pointer or Reference
A denial-of-service issue was discovered in MediaWiki before 1.35.6, 1.36.x before 1.36.4, and 1.37.x before 1.37.2. When many files exist, requesting Special:NewFiles with actor as a condition can result in a very long running query.
- 7.8 High severity
Kernel: Use After Free
There exists a use-after-free in io_uring in the Linux kernel. Signalfd_poll() and binder_poll() use a waitqueue whose lifetime is the current task. It will send a POLLFREE notification to all waiters before the queue is freed. Unfortunately, the io_uring poll
- 7.5 High severity
Jettison: Uncontrolled Recursion
Those using Jettison to parse untrusted XML or JSON data may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by Out of memory. This effect may sup
- 7.5 High severity
Jettison: Out-of-bounds Write
Those using Jettison to parse untrusted XML or JSON data may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by stackoverflow. This effect may sup
- 7.5 High severity
Lighttpd: NULL Pointer Dereference
In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denia
- 7.5 High severity
Mako: Inefficient Regular Expression Complexity
Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin.
- 7.8 High severity
ClusterLabs/pcs: Incorrect Default Permissions
A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. A privilege escalation could happen by obtaining an authentication token for a hacluster user. Wi
- 8.8 High severity
tinygltf: Improper Neutralization of Special Elements used in a Command
The tinygltf library uses the C library function wordexp() to perform file path expansion on untrusted paths that are provided from the input file. This function allows for command injection by using backticks. An attacker could craft an untrusted path input t
- 7.4 High severity
python-scciclient: Improper Certificate Validation
A flaw was found in the python-scciclient when making an HTTPS connection to a server where the server's certificate would not be verified. This issue opens up the connection to possible Man-in-the-middle (MITM) attacks.
- 7.0 High severity
Linux kernel: Concurrent Execution using Shared Resource with Improper Synchronization
A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to potentially trigger an out-of-bounds write or leak
- 8.6 High severity
dpdk: Incomplete Filtering of Special Elements
A permissive list of allowed inputs flaw was found in DPDK. This issue allows a remote attacker to cause a denial of service triggered by sending a crafted Vhost header to DPDK.
- 8.8 High severity
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility.
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw
- 7.5 High severity
Inetutils: NULL Pointer Dereference
telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available thro
- 7.5 High severity
org.yaml:snakeyaml: Improper Restriction of Recursive Entity References in DTDs
The package org.yaml:snakeyaml from 0 and before 1.31 are vulnerable to Denial of Service (DoS) due missing to nested depth limitation for collections.
- 7.8 High severity
Poppler: Integer Overflow or Wraparound
Poppler prior to and including 22.08.0 contains an integer overflow in the JBIG2 decoder (JBIG2Stream::readTextRegionSeg() in JBIGStream.cc). Processing a specially crafted PDF file or JBIG2 image could lead to a crash or the execution of arbitrary code. This
- 7.5 High severity
mod_wsgi: Insufficient Verification of Data Authenticity
A vulnerability was found in mod_wsgi. The X-Client-IP header is not removed from a request from an untrusted proxy, allowing an attacker to pass the X-Client-IP header to the target WSGI application because the condition to remove it is missing.
- 7.8 High severity
virglrenderer: Out-of-bounds Write
An out-of-bounds write issue was found in the VirGL virtual OpenGL renderer (virglrenderer). This flaw allows a malicious guest to create a specially crafted virgil resource and then issue a VIRTGPU_EXECBUFFER ioctl, leading to a denial of service or possible