OSV-2025-901 Heap-use-after-free in apache::thrift::protocol::TCompactProtocolT<apache::thrift::transport::TMemoryBu

Not scored Published

A heap-use-after-free vulnerability in Apache Thrift's TCompactProtocol allows attackers to potentially execute code or cause denial of service via crafted input.

Exploited in the wild
Not known
Login needed
Not stated
Attackable
Not stated
Victim action needed
Not needed
Fix
None listed

What is OSV-2025-901?

OSV-2025-901 is an use after free vulnerability in arrow, published on 17 Nov 2025.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=461058054

Crash type: Heap-use-after-free READ 1
Crash state:
apache::thrift::protocol::TCompactProtocolT&lt;apache::thrift::transport::TMemoryBu
unsigned int parquet::format::OffsetIndex::read&lt;apache::thrift::protocol::TCompa
void parquet::ThriftDeserializer::DeserializeUnencryptedMessage&lt;parquet::format:

Which versions are affected by OSV-2025-901?

1 open source package ship an affected version, including arrow.

PackageAffectedFixed in
arrow OSS-FuzzAll versionsNone

How do I fix OSV-2025-901?

No fix has been published for OSV-2025-901 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is OSV-2025-901 being exploited?

There is no known exploitation of OSV-2025-901 in the wild and no public exploit code.

Sources

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