CVE-2026-66393

A flaw was found in NLTK. A remote attacker can exploit an unbounded recursion vulnerability in the JSONTaggedDecoder.decodeobj function by supplying deeply nested JSON structures. This can cause the Python process to crash, leading to a denial of service. Mitigation To mitigate this vulnerabilit...

Important: Red Hat Security Advisory: iperf3 security update

An update for iperf3 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion

A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control-channel JSON with oversized numeric parameters, such as parallel and len, which are not properly validated by the server. This improper input validation can lead to excessive stream and thread...

CVE-2026-14368: Out-of-bounds Write

The LwM2M JSON content formatter's getstring in subsys/net/lib/lwm2m/lwm2mrwjson.c copies a parsed JSON string into a caller-supplied buffer and NUL-terminates it. The length guard used if stringlength buflen, which accepts a string whose length is exactly buflen. After memcpy fills the whole...

Amazon Linux 2023 : iperf3, iperf3-devel (ALAS2023-2026-2070)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-2070 advisory. A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control- channel JSON with oversized numeric parameters, such as parallel and len, which are not properly...

Amazon Linux 2 : iperf3, --advisory ALAS2-2026-3869 (ALAS-2026-3869)

The version of iperf3 installed on the remote host is prior to 3.1.7-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3869 advisory. A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control- channel JSON with oversized...

Important: iperf3 security update

Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss. Security Fixes: iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via...

ALSA-2026:61680 Important: iperf3 security update

Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss. Security Fixes: iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via...

CVE-2026-82803: NULL Pointer Dereference

A vulnerability has been found in armink struct2json 1.0. This affects the function S2JSTRUCTGETstringELEMENT in the library struct2json/inc/s2jdef.h of the component JSON Deserialization. The manipulation of the argument valuestring leads to null pointer dereference. The attack may be initiated...

Important: iperf3

Issue Overview: A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control-channel JSON with oversized numeric parameters, such as parallel and len, which are not properly validated by the server. This improper input validation can lead to excessive...

PT-2026-83882

Name of the Vulnerable Software and Affected Versions armink struct2json version 1.0 Description An issue exists in the JSON Deserialization component within the library struct2json/inc/s2jdef.h. A remote attacker can cause a null pointer dereference—a condition where the software attempts to rea...

RockyLinux 8 : iperf3 (RLSA-2026:61257)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:61257 advisory. iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion CVE-2026-71217 Tenable has...

PT-2026-83953

The LwM2M JSON content formatter's get string in subsys/net/lib/lwm2m/lwm2m rw json.c copies a parsed JSON string into a caller-supplied buffer and NUL-terminates it. The length guard used if string length buflen, which accepts a string whose length is exactly buflen. After memcpy fills the whole...

Important: iperf3 security update

Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss. Security Fixes: iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via...

RHEL 10 : iperf3 (RHSA-2026:61680)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:61680 advisory. Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter,...

RHEL 8 : iperf3 (RHSA-2026:61257)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:61257 advisory. Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter,...

ALSA-2026:61257 Important: iperf3 security update

Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss. Security Fixes: iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via...

PT-2026-84036

Kirby is an open-source content management system. Prior to 4.9.5 and 5.5.2, depending on the release line, Kirby's media handler in src/Cms/Media.php allowed KirbyCmsMedia::thumb to append a path-bearing filename to a validated parent media directory. On nginx, PHP's built-in server, or Apache...

CVE-2026-82664: Improper Neutralization of Input During Web Page Generation

A security vulnerability has been detected in yaojingang GEOFlow up to 2.1.0. This affects an unknown part of the file app/Http/Controllers/Site/HomeController.php of the component JSON-LD Theme Handler. The manipulation of the argument Search leads to cross site scripting. The attack is possible...

Important: iperf3

Issue Overview: A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control-channel JSON with oversized numeric parameters, such as parallel and len, which are not properly validated by the server. This improper input validation can lead to excessive...