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CVE-2026-49341

BACnet Stack: Uncontrolled recursion in Timer object writeback path leads to remote server stack overflow

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to version 1.5.1, there is a remotely reachable denial-of-service vulnerability in bacnet-stack affecting the default demo server built from the unmodified apps/server/main.c. This issue has been patched in version 1.5.1.

CVSS 3.1 · 7.5 High EPSS n/a KEV · Not listed
Vendors
—
Products
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CVE-2026-92822

Libmodulemd: libmodulemd: unbounded recursion when parsing nested xmd yaml

A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Enterprise Linux Hardened Images and 4 more
CVE-2026-128020

FrankenPHP before 1.13.2 Denial of Service via Cyclic Array Conversion

FrankenPHP before 1.13.2 contains an uncontrolled recursion vulnerability in its PHP-to-Go array converter that fails to detect circular references in PHP arrays. Passing a self-referential array to frankenphp_log() or returning one from a worker callback triggers a fatal Go stack overflow, terminating the entire server process.

CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Php
Products
Frankenphp
CVE-2026-128238

Scapy before 2.8.0 Uncontrolled Recursion DoS via BER SEQUENCE Decoder

Scapy before 2.8.0 contains an uncontrolled recursion vulnerability in the BER/ASN.1 decoder in scapy/asn1/ber.py that allows unauthenticated remote attackers to crash parsing applications. Attackers can send a single 833-byte packet with 250 nested ASN.1 SEQUENCE structures to trigger an unhandled RecursionError, terminating TLS, SNMP, X.509, or LDAP parsers even with safe=True.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Scapy
Products
Scapy
CVE-2026-47217

BACnet Stack: Channel member self-reference causes uncontrolled recursion and stack overflow in default BACnet/IP server

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, a remote attacker can trigger an uncontrolled recursion and stack overflow in the default server application of bacnet-stack by abusing the Channel object. This issue has been patched in versions 1.4.4 and 1.5.1.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Bacnetstack
Products
Bacnet Stack
CVE-2026-126193

Soup Sieve: Uncontrolled recursion in Soup Sieve CSS parser lets nested pseudo-class selectors exhaust the Python call stack

Soup Sieve is a CSS selector library for Beautiful Soup. From 0.4 until 3.0, deeply nested CSS pseudo-class selectors can cause recursive parsing to exceed Python’s recursion limit and raise  RecursionError . Applications accepting untrusted selectors may experience failure of the affected request or task if the exception is not handled. The demonstrated behavior is recoverable and does not establish an interpreter crash or persistent service-wide denial of service. This vulnerability is fixed in version 3.0.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Facelessuser
Products
Soupsieve
CVE-2026-106154

Uncontrolled Recursion in Telerik UI for ASP.NET Core FilterParser

In Progress® Telerik® UI for ASP.NET Core versions `2015.1.318` through `2026.3.1015`, the server-side FilterParser processes nested expressions in untrusted filter parameters through recursive parsing without a recursion-depth limit, while FilterLexer does not enforce an input-length limit. An unauthenticated remote attacker can exploit this if the application exposes an endpoint using DataSourceRequest model binding that is reachable without authentication. Deeply nested filters can trigger parsing errors during model binding or cause `StackOverflowException`. This issue is fixed in version `2026.4.1111`.

CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Vendors
Progress
Products
Telerik Ui For Asp.net Core
CVE-2026-63891

thunderbolt: property: Cap recursion depth in __tb_property_parse_dir()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in __tb_property_parse_dir() A DIRECTORY entry's value field is used as the dir_offset for a recursive call into __tb_property_parse_dir() with no depth counter. A crafted peer that chains DIRECTORY entries into a back-reference loop drives the parser until the kernel stack is exhausted and the guard page fires. Any untrusted XDomain peer (cable, dock, in-line inspector, adjacent host) that reaches the PROPERTIES_REQUEST control-plane exchange can trigger this without authentication. Thread a depth counter through tb_property_parse() and __tb_property_parse_dir(), and reject blocks that exceed TB_PROPERTY_MAX_DEPTH = 8. That is comfortably larger than any observed legitimate XDomain layout. Operators who do not need XDomain host-to-host discovery can disable the path entirely with thunderbolt.xdomain=0 on the kernel command line.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-63981

net/sched: act_mirred: Fix blockcast recursion bypass leading to stack overflow

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: Fix blockcast recursion bypass leading to stack overflow tcf_mirred_act() checks sched_mirred_nest against MIRRED_NEST_LIMIT (4) to prevent deep recursion. However, when the action uses blockcast (tcfm_blockid != 0), the function returns at the tcf_blockcast() call BEFORE reaching the counter increment. As a result, the recursion counter never advances and the limit check is entirely bypassed. When two devices share a TC egress block with a mirred blockcast rule, a packet egressing on device A is mirrored to device B via blockcast; device B's egress TC re-enters tcf_mirred_act() via blockcast and mirrors back to A, creating an unbounded recursion loop: tcf_mirred_act -> tcf_blockcast -> tcf_mirred_to_dev -> dev_queue_xmit -> sch_handle_egress -> tcf_classify -> tcf_mirred_act -> (repeat) This recursion continues until the kernel stack overflows. The bug is reachable from an unprivileged user via unshare(CLONE_NEWUSER | CLONE_NEWNET): user namespaces grant CAP_NET_ADMIN in the new network namespace, which is sufficient to create dummy devices, attach clsact qdiscs with shared blocks, and install mirred blockcast filters. BUG: TASK stack guard page was hit at ffffc90000b7fff8 Oops: stack guard page: 0000 [#1] SMP KASAN NOPTI CPU: 2 UID: 1000 PID: 169 Comm: poc Not tainted 7.0.0-rc7-next-20260410 RIP: 0010:xas_find+0x17/0x480 Call Trace: xa_find+0x17b/0x1d0 tcf_mirred_act+0x640/0x1060 tcf_action_exec+0x400/0x530 basic_classify+0x128/0x1d0 tcf_classify+0xd83/0x1150 tc_run+0x328/0x620 __dev_queue_xmit+0x797/0x3100 tcf_mirred_to_dev+0x7b1/0xf70 tcf_mirred_act+0x68a/0x1060 [repeating ~30+ times until stack overflow] Kernel panic - not syncing: Fatal exception in interrupt Fix this by incrementing sched_mirred_nest before calling tcf_blockcast() and decrementing it on return, mirroring the non-blockcast path. This ensures subsequent recursive entries see the updated counter and are correctly limited by MIRRED_NEST_LIMIT.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2026-111792

Apache XML Graphics Batik: Denial of Service via SVG Element Reference Resolution

Uncontrolled Recursion vulnerability in Apache XML Graphics Batik. This issue affects Apache XML Graphics Batik: through 1.19. Users are recommended to upgrade to version 1.20, which fixes the issue.

CVSS n/a EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Xml Graphics Batik
CVE-2026-118037

Uncontrolled Resource Consumption in Telerik Document Processing Libraries RadSpreadProcessing and RadSpreadStreamProcessing

In Progress® Telerik® Document Processing Libraries prior to version 2026.3.1027, uncontrolled recursion, infinite loop, unchecked loop condition and inefficient regular expression vulnerabilities in RadSpreadProcessing and RadSpreadStreamProcessing allow an unauthenticated attacker to terminate or hang the host process via a crafted XLSX or XLS workbook or formula.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Progress
Products
Telerik Document Processing Libraries
CVE-2026-118036

Uncontrolled Resource Consumption in Telerik Document Processing Libraries RadPdfProcessing and AI Document Summarization and Question Answering

In Progress® Telerik® Document Processing Libraries prior to version 2026.3.1027, uncontrolled recursion, infinite loop, inefficient algorithmic complexity and resource allocation vulnerabilities in RadPdfProcessing and AI document summarization and question answering allow an unauthenticated attacker to terminate or hang the host process via a crafted PDF document or document text submitted for summarization or question answering.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Progress
Products
Telerik Document Processing Libraries
CVE-2026-118035

Uncontrolled Resource Consumption in Telerik Document Processing Libraries RadWordsProcessing

In Progress® Telerik® Document Processing Libraries prior to version 2026.3.1027, uncontrolled recursion, inefficient algorithmic complexity and infinite loop vulnerabilities in RadWordsProcessing allow an unauthenticated attacker to terminate or hang the host process via a crafted DOCX, DOC, RTF or HTML document.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Progress
Products
Telerik Document Processing Libraries
CVE-2026-120812

Full server crash via unbounded per-operand recursion in time-series query vectorization

An issue in MongoDB Server's query processing component allows an authenticated user with read privileges to cause a denial of service. Uncontrolled recursion in an internal query compilation component can lead to stack exhaustion and server process termination when processing certain queries against time-series collections.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
Vendors
Mongodb
Products
Mongodb Server
CVE-2026-97845

Uncontrolled recursion vulnerability in QXmlSimpleReader XML parsing impacts Qt

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML parsing functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt XML module (Qt 5).

CVSS 4.0 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Qt
Products
Qt Qt5compat Qtbase
CVE-2026-113578

Photoshop Desktop | Uncontrolled Recursion (CWE-674)

Photoshop Desktop is affected by an Uncontrolled Recursion vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
Photoshop
CVE-2026-114605

dnspython dns.name.from_wire_parser() excessive CPU use

dnspython is a DNS toolkit for Python. Prior to 2.9.0, dns.name.from_wire_parser follows attacker-controlled DNS compression pointer chains without a hop limit. A malicious DNS wire-format message can force excessive pointer traversal during name decompression, causing high CPU use, application degradation, or denial of service in applications that process untrusted DNS messages. This issue is fixed in version 2.9.0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Rthalley
Products
Dnspython
CVE-2026-58505

geojson-vt: Uncontrolled Recursion in Nested GeoJSON GeometryCollection

geojson-vt is a JavaScript library for slicing GeoJSON data into vector tiles on the fly, primarily designed to enable rendering and interacting with large geospatial datasets on the browser side (without a server). Prior to version 6.1.1, @maplibre/geojson-vt contains an uncontrolled recursion vulnerability in its GeoJSON conversion logic. When a GeoJSONVT instance is constructed with a deeply nested GeometryCollection object, the mutually recursive functions featureToInternal and convertGeometryCollection in src/convert.ts exhaust the Node.js call stack, causing an unhandled RangeError: Maximum call stack size exceeded that terminates the process. Because the library is widely used in server-side tile services that accept GeoJSON over the network, a remote unauthenticated attacker can trigger a denial-of-service by sending a single crafted payload. No authentication is required, and no non-default library options are needed. This issue has been patched in version 6.1.1.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
—
Products
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CVE-2026-58227

TLS/DTLS denial of service via unbounded recursion on cross-signed peer certificate chain

The Erlang/OTP ssl application does not detect cycles when reconstructing an incomplete peer certificate chain during a TLS or DTLS handshake. In ssl_certificate:handle_incomplete_chain/5, the received chain is passed to ssl_certificate:build_certificate_chain/5, which walks issuer relationships via ssl_certificate:do_certificate_chain/7 with no cycle detection and no depth limit. When the peer supplies two mutually cross-signed certificates in unordered form (A issues B, B issues A), the issuer lookup alternates between the two certificates and the pair of functions recurses indefinitely, growing the call stack and chain accumulator without bound. An unauthenticated remote attacker can send a crafted certificate chain in a TLS or DTLS Certificate handshake message to exhaust available memory and crash the BEAM node. Only a TCP connection and a partial handshake are required; no authentication or completed handshake is needed, and both TLS/DTLS servers and clients are affected when processing peer certificate messages. This issue affects OTP from OTP 23.2 before OTP 27.3.4.15, OTP 28.5.0.4, and OTP 29.0.4, corresponding to ssl from 10.2 before 11.2.12.11, 11.6.0.4, and 11.7.4.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Erlang
Products
Erlang/otp Erlang\/otp Erlang\/ssl and 1 more
CVE-2026-126562

Semantic MediaWiki 3.0.0 before 7.4.1 Uncontrolled Recursion via ElasticStore ConceptDescriptionInterpreter

Semantic MediaWiki 3.0.0 before 7.4.1 contains an uncontrolled recursion vulnerability in the ElasticStore ConceptDescriptionInterpreter that only detects directly self-referencing concepts. Users with page-edit rights can create mutually referencing concept pages, causing concept page views, Special:Ask, or api.php action=ask queries to exhaust PHP memory or stack.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Semantic-mediawiki
Products
Semantic Mediawiki