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Fix dest buffer bounds check in Snappy.uncompress - #734

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Throw IllegalArgumentException when the destination is smaller than uncompressedLength() before calling native RawUncompress. Applied to both the byte[] and ByteBuffer overloads.

Fixes #728 (CVE-2026-90559)

@github-actions github-actions Bot added the bug label Sep 16, 2026
Throw IllegalArgumentException when the destination is smaller than
uncompressedLength() before calling native RawUncompress. Applied to
both the byte[] and ByteBuffer overloads.

Fixes xerial#728 (CVE-2026-90559)
@pprabhala-oss
pprabhala-oss force-pushed the local/issue-728-uncompress-dest-bounds branch from 3fc0b26 to 9b58271 Compare September 16, 2026 18:57
astubbs added a commit to astubbs/parallel-consumer that referenced this pull request Sep 18, 2026
…atabind 2.18.10 until fixes ship (#520)

`deps: whole-tree CVE scan` has been red on every open PR since the OSS Index feed picked up seven
advisories the root pom's `excludeVulnerabilityIds` list did not know about - four components, none
of them changed by any PR. Read from the report artifact of the failing run on #517 (run
35293625759) and reproduced with `bin/check-ossindex-audit.sh` against it: exit 2, the scan ran and
found something. This commit answers each one, and `docs/inflight/deps-cve-backlog.md` carries the
long form of every decision below.

What a user sees: `parallel-consumer-core` now resolves `zstd-jni:1.5.7-17` instead of `1.5.7-12`,
and `parallel-consumer-vertx` resolves Netty `4.1.138.Final` instead of `4.1.137.Final` through the
`netty-bom` pin. Nothing else on the published classpath moves.

zstd-jni 1.5.7-12, CVE-2026-87795 / CVE-2026-87823 / CVE-2026-89045 (CVSS to 8.8) - BUMPED to
1.5.7-17. The library is a direct compile dependency of `parallel-consumer-core` (since upstream's
Kafka 3.1.0 bump) because `OffsetSimpleSerialisation` compresses the offset map with it, so the
version lives in that pom, not in the root's `dependencyManagement` where lz4-java is pinned. All
three are fixed in 1.5.7-14 (luben/zstd-jni advisories GHSA-ff36-7w3w-g8rm, GHSA-jfr6-9xqw-2g2q,
GHSA-9jx2-gfp9-phfm). None is reachable from here - the defects are in the `ZstdDictCompress`
constructor, the direct-`ByteBuffer` frame-size natives, and a caller-supplied negative length to
`ZstdInputStreamNoFinalizer.read()`; kafka-clients uses the NoFinalizer streams with its own buffer
sizes and PC uses `ZstdInputStream` / `ZstdOutputStream` - but the bump is free: the 1.5.7-17 jar is
class-file 52 (Java 8) like 1.5.7-12, its pom adds no compile-scope dependency, and the release-line
commits kept the public signatures `int` when the natives went `long`. Newest release rather than
first fixed one. Kafka's own pin is 1.5.6-4 on 3.9 and 1.5.6-10 on trunk, so this stays ahead of
anything kafka-clients ships, as it already was.

netty 4.1.137.Final, CVE-2026-89044 (GHSA-hcvj-94mj-jp5c, 6.5, request smuggling through a
malformed Transfer-Encoding in netty-codec-http / netty-codec-http2, 4.1.133 through 4.1.137) -
BUMPED to 4.1.138.Final via the existing `netty.version` / `netty-bom` import. Third bump in the
sequence #324 started; same answer, because a fixed release exists. 4.1.138.Final is
class-file 50 (Java 6).

snappy-java 1.1.10.8, CVE-2026-90559 (8.7, xerial/snappy-java#728, out-of-bounds write in
`Snappy.uncompress(ByteBuffer, ByteBuffer)`) - EXCLUDED, standing. There is no fixed release:
1.1.10.8 is the newest on Central (July 2025), the issue is open, and the candidate fix
xerial/snappy-java#734 is open and unmerged, so it is not TEMPORARY (that class is for a fix already
merged upstream). The exclusion is argued on reachability, read from the 1.1.10.8 bytecode with
javap rather than from the source: kafka-clients' `SnappyCompression` and PC's
`OffsetSimpleSerialisation` construct only `SnappyInputStream` / `SnappyOutputStream` (PC's own
snappy helpers there have no callers at all, main or test); those invoke
only the `byte[]` overloads, sizing the output from `Snappy.uncompressedLength` first; and inside the
jar the vulnerable `ByteBuffer` overload is reached only from `SnappyFramedInputStream`, which
nothing here uses. Retire when a release carries the capacity check - bump in core's pom, delete
the entry.

jackson-databind 2.18.10 (example-streams only), CVE-2026-91776 / CVE-2026-91777 (6.9) - EXCLUDED,
TEMPORARY-SINCE 2026-09-18. Both fixes are merged on the 2.18 branch (FasterXML/jackson-databind#6203
and FasterXML/jackson-databind#6204, 2026-09-14/15) and milestoned 2.18.11, which is not on Central. The
`jackson-bom` Dependabot ignore is patch-permissive, so the 2.18.11 update PR is the retirement
trigger, and `bin/check-cve-exclusions.sh` expires the entry at 90 days if it does not arrive.

Evidence, run on this box (JDK 17 via mise, 8-processor cap):
- `bin/check-cve-exclusions.sh`: green, with one temporary entry dated today.
- `bin/check-ossindex-audit.sh` against a copy of the CI report edited as the plugin would report
  the post-change tree (bumped coordinates removed, the three new ids in `excludedVulnerabilities`):
  exit 0, nothing vulnerable, every remaining advisory excluded. A live scan needs the repo's OSS Index secrets, which are not on
  this box (anonymous requests 401), so whether 1.5.7-17 / 4.1.138.Final carry advisories of their
  own is proven by the next CI run, not here.
- Core unit suite, `-Pci -pl parallel-consumer-core -am test` with CI's excluded groups: BUILD
  SUCCESS, no failures, no errors.
- New `CompressionCodecsIT` (core, test-integration): produces 200 records per codec with
  `compression.type` gzip / snappy / lz4 / zstd and reads them back through PC intact. Nothing in
  the suite set `compression.type` before, so no test exercised the three native codec libraries
  end to end; this is the test the next codec bump points at.
- `parallel-consumer-vertx` unit tests against Netty 4.1.138.Final: BUILD SUCCESS, and
  `dependency:tree` across all nine modules resolves Netty 4.1.138.Final and zstd-jni 1.5.7-17
  everywhere.
- `bin/check-all.sh`: no gate failed.

Not done, on purpose: no CHANGELOG entry (generated at release), no move of jackson onto the
2.19/2.20 lines (only the 2.18 PRs exist; the line choice is `deps-deferred-majors.md`'s), and the
zstd/snappy convergence split recorded in `deps-convergence-tail.md` is unchanged - the direct
declarations already won that resolution before this commit.

Co-authored-by: Claude Fable 5.1 (1M context) <noreply@anthropic.com>
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Off heap OOB Write in ByteBuffer Uncompress

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