checkstyle:CheckstyleFuzzer: Security exception in org.antlr.v4.runtime.atn.PredictionContext.fromRuleContext

Detailed Report: https://oss-fuzz.com/testcase?key=5728570885603328 Project: checkstyle Fuzzing Engine: libFuzzer Fuzz Target: CheckstyleFuzzer Job Type: libfuzzerubsancheckstyle Platform Id: linux Crash Type: Security exception Crash Address: Crash State:...

curl: RTSP RTP Interleaved Parser Assertion Failure (Zero-Length RTP Payload)

Summary: I am submitting this as a security issue primarily due to how it was discovered and that it's my first Curl submission, but I suspect I might be overly cautious here. This issue was discovered as part of the AIXCC competition, and I am assisting on reporting true positive findings to...

apache-commons-net:OS400FTPEntryParserFuzzer: Security exception in java.base/java.util.regex.Pattern$Loop.match

Detailed Report: https://oss-fuzz.com/testcase?key=4734635798495232 Project: apache-commons-net Fuzzing Engine: libFuzzer Fuzz Target: OS400FTPEntryParserFuzzer Job Type: libfuzzerasanapache-commons-net Platform Id: linux Crash Type: Security exception Crash Address: Crash State:...

RandSet: Randomized Corpus Reduction for Fuzzing Seed Scheduling

Seed explosion is a fundamental problem in fuzzing seed scheduling, where a fuzzer maintains a huge corpus and fails to choose promising seeds. Existing works focus on seed prioritization but still suffer from seed explosion since corpus size remains huge. We tackle this from a new perspective:...

ruby:fuzz_ruby_parser: Use-after-poison in rb_str_modify

Project: https://github.com/ruby/ruby.git Detailed Report: https://oss-fuzz.com/testcase?key=5366748345073664 Project: ruby Fuzzing Engine: honggfuzz Fuzz Target: fuzzrubyparser Job Type: honggfuzzasanruby Platform Id: linux Crash Type: Use-after-poison READ 8 Crash Address: 0x78937c110020 Crash...

OSV-2026-301 Use-of-uninitialized-value in pcpp::IPv6Extension::getExtensionLen

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=486705308 Crash type: Use-of-uninitialized-value Crash state: pcpp::IPv6Extension::getExtensionLen pcpp::IPv6Layer::parseExtensions pcpp::IPv6Layer::IPv6Layer...

APFuzz: Towards Automatic Greybox Protocol Fuzzing

Greybox protocol fuzzing is a random testing approach for stateful protocol implementations, where the input is protocol messages generated from mutations of seeds, and the search in the input space is driven by the feedback on coverage of both code and state. State model and message model are th...

MulCovFuzz: A Multi-Component Coverage-Guided Greybox Fuzzer for 5G Protocol Testing

As mobile networks transition to 5G infrastructure, ensuring robust security becomes more important due to the complex architecture and expanded attack surface. Traditional security testing approaches for 5G networks rely on black-box fuzzing techniques, which are limited by their inability to...

GHSA-V7G2-M8C5-MF84 ImageMagick: Memory allocation with excessive without limits in the internal SVG decoder

A crafted SVG file containing an malicious element causes ImageMagick to attempt to allocate 674 GB of memory, leading to an out-of-memory abort. Found via AFL++ fuzzing with afl-clang-lto instrumentation and AddressSanitizer...

ImageMagick: Memory allocation with excessive without limits in the internal SVG decoder

A crafted SVG file containing an malicious element causes ImageMagick to attempt to allocate 674 GB of memory, leading to an out-of-memory abort. Found via AFL++ fuzzing with afl-clang-lto instrumentation and AddressSanitizer...

gpsd:FuzzDrivers: Global-buffer-overflow in navcom_parse

Project: https://gitlab.com/gpsd/gpsd.git Detailed Report: https://oss-fuzz.com/testcase?key=5970909205954560 Project: gpsd Fuzzing Engine: afl Fuzz Target: FuzzDrivers Job Type: aflasangpsd Platform Id: linux Crash Type: Global-buffer-overflow READ 1 Crash Address: 0x5568384c7d40 Crash State:...

apache-poi:POIHSSFFuzzer: Security exception in org.apache.poi.util.IOUtils.safelyAllocate

Detailed Report: https://oss-fuzz.com/testcase?key=4605841981636608 Project: apache-poi Fuzzing Engine: libFuzzer Fuzz Target: POIHSSFFuzzer Job Type: libfuzzerasanapache-poi Platform Id: linux Crash Type: Security exception Crash Address: Crash State: org.apache.poi.util.IOUtils.safelyAllocate...

FuzzySQL: Uncovering Hidden Vulnerabilities in DBMS Special Features with LLM-Driven Fuzzing

Traditional database fuzzing techniques primarily focus on syntactic correctness and general SQL structures, leaving critical yet obscure DBMS features, such as system-level modes e.g., GTID, programmatic constructs e.g., PROCEDURE, advanced process commands e.g., KILL, largely underexplored...

apache-poi:POIHSSFFuzzer: Security exception in java.base/sun.security.provider.DigestBase.engineDigest

Detailed Report: https://oss-fuzz.com/testcase?key=6396064881246208 Project: apache-poi Fuzzing Engine: libFuzzer Fuzz Target: POIHSSFFuzzer Job Type: libfuzzerasanapache-poi Platform Id: linux Crash Type: Security exception Crash Address: Crash State:...

Automatic, Expressive, and Scalable Fuzzing with Stitching

Fuzzing is a powerful technique for finding bugs in software libraries, but scaling it remains difficult. Automated harness generation commits to fixed API sequences at synthesis time, limiting the behaviors each harness can test. Approaches that instead explore new sequences dynamically lack the...

wireshark:fuzzshark_ip_proto-udp: Stack-use-after-return in uuid_guid_equal

Project: https://code.wireshark.org/review/wireshark https://gitlab.com/wireshark/wireshark.git Detailed Report: https://oss-fuzz.com/testcase?key=6138203366293504 Project: wireshark Fuzzing Engine: libFuzzer Fuzz Target: fuzzsharkipproto-udp Job Type: libfuzzerasanwireshark Platform Id: linux...

“Good enough” emulation: Fuzzing a single thread to uncover vulnerabilities

A Cisco Talos researcher worked around the limitations of hardware-level Code Read-out Protection RDP on the Socomec DIRIS M-70 gateway by pivoting from physical debugging to a "good enough" emulation approach. By focusing on emulating only the single thread responsible for Modbus protocol handli...

OSV-2026-259 Use-of-uninitialized-value in tsip_parse_input

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=484859694 Crash type: Use-of-uninitialized-value Crash state: tsipparseinput gpsdpoll FuzzDrivers.c...

OSV-2026-255 UNKNOWN WRITE in nmeaid_to_prn

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=484666533 Crash type: UNKNOWN WRITE Crash state: nmeaidtoprn processGSV nmeaparse...

OSV-2026-242 Use-of-uninitialized-value in ntrip_parse_url

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=483900342 Crash type: Use-of-uninitialized-value Crash state: ntripparseurl FuzzClient.c...