OSV-2026-1528

See a problem?
Import Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/apache-logging-log4cxx/OSV-2026-1528.yaml
JSON Data
https://api.osv.dev/v1/vulns/OSV-2026-1528
Published
2026-11-11T00:08:27Z
Modified
2026-11-12T12:30:02Z
Summary
Heap-use-after-free in log4cxx::helpers::InetAddress::toString
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=583622276

Crash type: Heap-use-after-free READ 8
Crash state:
log4cxx::helpers::InetAddress::toString
log4cxx::net::SocketAppenderSkeleton::SocketAppenderSkeletonPriv::retryConnect
log4cxx::helpers::ThreadUtility::priv_data::doPeriodicTasks
References

Affected packages

OSS-Fuzz / apache-logging-log4cxx

Package

Name
apache-logging-log4cxx
Purl
pkg:generic/apache-logging-log4cxx

Affected ranges

Type
GIT
Repo
https://github.com/apache/logging-log4cxx
Events
Introduced
8043e4cf96fff4a24b84dbeaf3bd6aa6a4274d97
Fixed
ffaa9c419602768bf2bec8c85af325792a4d1b43

Ecosystem specific 

{
    "severity": "HIGH"
}

Database specific

fixed_range 
"4bc69bbdb67f07d67bbd6f71d4f57ecced36d1b9:ffaa9c419602768bf2bec8c85af325792a4d1b43"
introduced_range 
"facd4f4348f71c9fb44aa98f54ae8db74ff32eed:cf66bb631d291059c3611a1b9af79f75a2b50b35"
source 
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/apache-logging-log4cxx/OSV-2026-1528.yaml"