encoding/pem: Quadratic complexity when parsing some invalid inputs in encoding/pem

A potential denial of service flaw has been discovered in the golang encoding/pem module. Due to the design of the PEM parsing function, the processing time for some inputs scales non-linearly with respect to the size of the input. This affects programs which parse untrusted PEM inputs and may...

kernel: Fix of 5 CVEs

net/sched: schhfsc: upgrade 'rt' to 'sc' when it becomes a inner curve CVE-2023-4623 - net/sched: Enforce that teql can only be used as root qdisc CVE-2026-23074 - ALSA: usb-audio: Fix use-after-free in sndusbmixerfree CVE-2026-23089 - atm: atmtcp: Prevent arbitrary write in atmtcprecvcontrol...

golang.org/x/net/html: Quadratic parsing complexity in golang.org/x/net/html

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service DoS if an attacker provides specially crafted HTML content...

GHSA-5478-66C3-RHXR Pretext: Algorithmic Complexity (DoS) in the text analysis phase

isRepeatedSingleCharRun in src/analysis.ts line 285 re-scans the entire accumulated segment on every merge iteration during text analysis, producing On² total work for input consisting of repeated identical punctuation characters. An attacker who controls text passed to prepare can block the main...

CVE-2026-34166

LiquidJS (template engine) has a memoryLimit bypass in the replace filter: when memoryLimit is enabled, replacing a pattern can produce output size that grows quadratically with occurrences, bypassing the configured memory cap and risking out-of-memory DoS. Affected: prior to 10.25.3. Fix: upgrad...

CVE-2026-34166 LiquidJS has a Memory Limit Bypass via Quadratic Amplification in `replace` Filter

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.3, the replace filter in LiquidJS incorrectly accounts for memory usage when the memoryLimit option is enabled. It charges str.length + pattern.length + replacement.length bytes to the memory limite...

CVE-2026-34166 LiquidJS has a Memory Limit Bypass via Quadratic Amplification in `replace` Filter

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.3, the replace filter in LiquidJS incorrectly accounts for memory usage when the memoryLimit option is enabled. It charges str.length + pattern.length + replacement.length bytes to the memory limite...

CVE-2026-34166 LiquidJS has a Memory Limit Bypass via Quadratic Amplification in `replace` Filter

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.3, the replace filter in LiquidJS incorrectly accounts for memory usage when the memoryLimit option is enabled. It charges str.length + pattern.length + replacement.length bytes to the memory limite...

GHSA-MMG9-6M6J-JQQX LiquidJS Has Memory Limit Bypass via Quadratic Amplification in `replace` Filter

Summary The replace filter in LiquidJS incorrectly accounts for memory usage when the memoryLimit option is enabled. It charges str.length + pattern.length + replacement.length bytes to the memory limiter, but the actual output from str.splitpattern.joinreplacement can be quadratically larger whe...

EUVD-2026-20554

LiquidJS Has Memory Limit Bypass via Quadratic Amplification in replace Filter...

LiquidJS Has Memory Limit Bypass via Quadratic Amplification in `replace` Filter

Summary The replace filter in LiquidJS incorrectly accounts for memory usage when the memoryLimit option is enabled. It charges str.length + pattern.length + replacement.length bytes to the memory limiter, but the actual output from str.splitpattern.joinreplacement can be quadratically larger whe...

Rack has quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header

Summary Rack::Utils.selectbestencoding processes Accept-Encoding values with quadratic time complexity when the header contains many wildcard entries. Because this method is used by Rack::Deflater to choose a response encoding, an unauthenticated attacker can send a single request with a crafted...

CVE-2026-31934

A flaw was found in Suricata, a network Intrusion Detection System IDS, Intrusion Prevention System IPS, and Network Security Monitoring NSM engine. A remote attacker could exploit a quadratic complexity issue when searching for URLs in MIME-encoded messages over SMTP. This could lead to a...

CVE-2026-34230 Rack: Quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Utils.selectbestencoding processes Accept-Encoding values with quadratic time complexity when the header contains many wildcard entries. Because this method is used by Rack::Deflater to choose a respon...

CVE-2026-34230

Rack is a modular Ruby web server interface. CVE-2026-34230 describes a denial-of-service risk where Rack::Utils.select_best_encoding enters quadratic time on Accept-Encoding headers with many wildcard entries, enabling an unauthenticated attacker to exhaust CPU in the Rack::Deflater path. The is...

CVE-2026-34230 Rack: Quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Utils.selectbestencoding processes Accept-Encoding values with quadratic time complexity when the header contains many wildcard entries. Because this method is used by Rack::Deflater to choose a respon...

CVE-2026-34230 Rack: Quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Utils.selectbestencoding processes Accept-Encoding values with quadratic time complexity when the header contains many wildcard entries. Because this method is used by Rack::Deflater to choose a respon...

DEBIAN-CVE-2026-31934

Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, there is a quadratic complexity issue when searching for URLs in mime encoded messages over SMTP leading to a performance impact. This issue has been patched in version 8.0.4...

UBUNTU-CVE-2026-31934

Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, there is a quadratic complexity issue when searching for URLs in mime encoded messages over SMTP leading to a performance impact. This issue has been patched in version 8.0.4...

CVE-2026-31937 Suricata dcerpc: quadratic complexity in dcerpc buffering

Suricata is a network IDS, IPS and NSM engine. Prior to version 7.0.15, inefficiency in DCERPC buffering can lead to a performance degradation. This issue has been patched in version 7.0.15...