Search vulnerabilities

Use the Query Builder to create your own search query, or check out the documentation to learn the search syntax.

Results 365

Export CSV
CVE-2026-72678

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service

Elasticsearch does not validate a size value taken from a user-supplied input before that value is used to reserve memory for an internal data structure. An authenticated user holding only read privileges can submit a single small crafted request to a product API endpoint that causes the node to attempt an excessively large allocation. The resulting memory exhaustion raises a fatal error that terminates the Elasticsearch node process, causing a denial of service for the affected node and degrading cluster health. The defect is not volumetric, so a single request is sufficient regardless of the heap size configured on the target node.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Elastic
Products
Elasticsearch
CVE-2026-72687

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service

A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single small request containing a forged opaque identifier. Elasticsearch decodes and deserializes the identifier before confirming that it was legitimately issued by the cluster, and a size value carried inside the identifier drives an allocation that is neither capped nor accounted for by the available memory-usage controls. The resulting out-of-memory condition is fatal and terminates the affected node process, resulting in a denial of service.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Elastic
Products
Elasticsearch
CVE-2026-72639

Memory Allocation with Excessive Size Value in Elasticsearch Highlighting Leading to Denial of Service

Elasticsearch does not enforce an upper bound on a user-supplied count accepted by a search highlighting option, and the allocation derived from that count is not accounted against any circuit breaker. An authenticated user holding only read privileges on a single searchable index can submit one small search request that causes the node to reserve an excessively large internal data structure. The allocation occurs before the existing highlighting safety limits are evaluated, so memory exhaustion raises a fatal error that terminates the Elasticsearch node process. This results in a denial of service for the affected node and degrades cluster routing and health. The defect is not volumetric and does not depend on the size of the indexed data, so a single request is sufficient.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Elastic
Products
Elasticsearch
CVE-2026-59646

DTLS handshake reassembler allocates buffer from unchecked 24-bit length

In Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X series), 2.0.24 (2.0.X series) and 2.1.24 (2.1.X series).

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Bouncycastle Legion Of The Bouncy Castle Inc.
Products
Bc-java Bctls-fips Bouncy Castle For Java Lts and 3 more
CVE-2026-14682

Possible OOM from unbounded up-front allocation on a definite-length read

In Bouncy Castle for Java before 1.85, Possible OOM from unbounded up-front allocation on a definite-length read. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series), and before bctls-fips 1.0.24.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Bouncycastle Legion Of The Bouncy Castle Inc.
Products
Bc-java Bctls-fips Bouncy Castle For Java Lts and 4 more
CVE-2026-69219

RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Rabbitmq
Products
Java-client
CVE-2026-75935

Memory-amplification denial of service via declared-length preallocation in Amazon ion-java

Uncontrolled memory allocation in the binary Ion stream cursor in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted Ion binary document containing a declared-length field that causes excessive heap preallocation. To remediate this issue, users should upgrade to version 1.12.0.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Amazon Amazon Ion
Products
Ion Amazon Ion Java
CVE-2025-71395

SurrealDB before 2.2.2 Memory Exhaustion via string::replace

SurrealDB versions before 2.2.2 contain a memory exhaustion vulnerability in the string::replace function that fails to restrict resulting string length when using regex patterns. An authenticated attacker can craft a malicious query to exhaust server memory through unbounded string allocations, causing denial of service.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Surrealdb
Products
Surrealdb
CVE-2026-49975

Apache HTTP Server: mod_http2 denial of service

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

CVSS 3.1 · 7.5 High EPSS 33.0% KEV · Not listed
Vendors
Apache Debian
Products
Http Server Debian Linux
CVE-2026-15337

Potential denial-of-service vulnerability in check_for_language()

An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. `django.utils.translation.check_for_language()` is subject to a potential denial-of-service attack when given many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory. Such codes reach the function through the `django.views.i18n.set_language()` view, which is not routed by default. The consumed memory is bounded, since request data is limited by the `DATA_UPLOAD_MAX_MEMORY_SIZE` setting (default 2.5 MB) and the cache holds a fixed maximum number of entries. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Jaeyoung Jang for reporting this issue.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Djangoproject
Products
Django
CVE-2026-46603

Excessive memory allocation during VP8L decoding in golang.org/x/image

VP8L decoding in golang.org/x/image/vp8l can allocate an excessive amount of memory when processing a crafted VP8L image containing many unused Huffman tree groups. This allows a remote attacker to cause a denial of service via memory exhaustion.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Golang
Products
Image
CVE-2026-69702

SnailJob 1.7.0 Denial of Service via FuryUtil.deserialize OOM

SnailJob 1.7.0 contains a denial of service vulnerability in the FuryUtil.deserialize helper that allows authenticated attackers to crash the server by supplying a crafted Zstandard-compressed payload with an inflated frame_content_size field in the frame header. Attackers can store a base64-encoded Zstandard payload declaring an arbitrarily large decompressed size in a retry task argument, causing the JVM to attempt an unbounded array allocation and triggering an unrecoverable java.lang.OutOfMemoryError when the task is dispatched through the retry-task pipeline.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Aizuda
Products
Snail-job Snailjob (snail-job)
CVE-2026-19566

Net::CIDR::Set versions before 0.23 for Perl allow memory exhaustion and malformed set ranges via unbounded IPv6 prefix lengths

Net::CIDR::Set versions before 0.23 for Perl allow memory exhaustion and malformed set ranges via unbounded IPv6 prefix lengths. The _encode method accepts any prefix length matching `(0|[1-9][0-9]*)` and passes it to _width2bits(), which builds the mask as `'1' x ($width + 8)`, one character per bit. The _inc() method then unpacks the packed mask into a Perl array of one scalar per byte, so the prefix length alone sets the allocation size: `::/100000000` builds a 100 MB string and a 12.5 million element array. The value being tested is parsed, not just the configured ranges: contains() builds a set from its argument, and _guess_coder() tries the IPv4 coder and then the IPv6 coder, so an IPv4-only set expands an oversized IPv6 prefix length before the mixed address width check rejects it. Any caller that passes untrusted input to contains() or add() can exhaust process memory. A prefix length above 128 is also stored as a range that does not match the requested block: 2001:db8::/129 stringifies back unchanged, contains() of its own base address returns false, and removing it from a set drops the base address while the set still prints as covering it.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Rrwo
Products
Net::cidr::set
CVE-2026-44630

Apache IoTDB: RPC service denial of service via unchecked Thrift string length

Improper validation of length fields in the Apache IoTDB RPC service may allow a remote unauthenticated attacker to cause a denial of service. By sending a crafted malformed Thrift frame, an attacker can cause IoTDB to allocate an excessive amount of memory and crash with an OutOfMemoryError. This issue affects Apache IoTDB: before 1.3.8, from 2.0.0 before 2.0.9. Users are recommended to upgrade to version 2.0.10, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Iotdb
CVE-2026-17535

Velociraptor Multiple Crashes in NTFS Parser when applied to invalid NTFS Volumes

Velociraptor's NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images. Typically Velociraptor's NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g.  dead disk forensics https://docs.velociraptor.app/docs/forensic/deaddisk/ ) Velociraptor may be used on untrusted NTFS image files.  If an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Rapid7
Products
Velociraptor
CVE-2026-66485

Uncontrolled Memory Allocation in GNU cpio

GNU cpio is vulnerable to an uncontrolled memory allocation in the make_path function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a sufficiently long nested pathname causes an unbounded stack allocation, resulting in a stack overflow and crash of the cpio process. An attacker who can supply a crafted cpio archive to a victim who extracts it can cause a denial of service. This issue has been fixed in commit 3cd514031371d8aeeaf2048aa10103e02831aaa9

CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Gnu
Products
Cpio
CVE-2026-70377

imagecli - Uncontrolled Memory Allocation via Unbounded scale Ratio Causes Denial of Service

imagecli's pipeline operation (Scale::apply in src/image_ops.rs) computes output width/height as (dimension as f32 * ratio) as u32 with no upper-bound validation on the CLI-supplied ratio, which is parsed via nom::number::complete::float with no range check. Any application embedding imagecli as a library and accepting user-controlled pipeline strings is remotely crashable with a single request.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Theotherphil
Products
Imagecli
CVE-2026-66733

Sonic 3 A.I.R. Unbounded Memory Allocation DoS via ReceivedPacketCache

Sonic 3 A.I.R. before commit 2492d18 contains an unbounded memory allocation vulnerability in ReceivedPacketCache::enqueuePacket() that allows unauthenticated remote attackers to crash the server process by sending a crafted UDP packet with mUniquePacketID set to the maximum uint32 value. The mUniquePacketID field is read directly from the UDP wire-format packet header without bounds checking, causing the server to allocate one CacheItem per missing packet ID gap, exhausting available host memory and propagating an uncaught std::bad_alloc exception to std::terminate().

CVSS 4.0 · 8.7 High EPSS 1.6% KEV · Not listed
Vendors
Eukaryot
Products
Sonic3air