GHSA-q233-g92q-qxp6

Suggest an improvement
Source
https://github.com/advisories/GHSA-q233-g92q-qxp6
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-q233-g92q-qxp6/GHSA-q233-g92q-qxp6.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-q233-g92q-qxp6
Aliases
Published
2026-10-27T15:33:22Z
Modified
2026-10-27T15:47:24Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
snappy-java: Unbounded memory allocation from attacker-declared uncompressed lengtha
Details

Impact

Several decompression paths in snappy-java allocate an output buffer sized by the uncompressed length declared in the first bytes of the compressed data, before decompressing or validating it. A few bytes of crafted input can therefore force an allocation of up to 2 GB, causing OutOfMemoryError (denial of service), or a NegativeArraySizeException for declared lengths of 2^31 or more.

Affected entry points include Snappy.uncompress(byte[]), Snappy.uncompressString, the Snappy.uncompress*Array methods, SnappyInputStream, and SnappyFramedInputStream. The maxChunkSize limit added for CVE-2023-43642 bounds only the compressed chunk length, so it does not prevent this.

Patches

Fixed in 1.1.10.9 (#739). Snappy.uncompressedLength() now rejects negative declared lengths, and lengths larger than any valid Snappy stream of the given size can produce. The densest Snappy element expands 3 bytes to 64, so the limit is 64/3 of the compressed size. Allocations are therefore proportional to the input actually received.

Workarounds

Before decompressing untrusted data, check that Snappy.uncompressedLength(input) is within an application-specific limit.

Database specific 
{
    "cwe_ids":  [
        "CWE-770",
        "CWE-789"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-10-27T15:33:22Z",
    "nvd_published_at":  null,
    "severity":  "HIGH"
}
References

Affected packages

Maven / org.xerial.snappy:snappy-java

Package

Name
org.xerial.snappy:snappy-java
View open source insights on deps.dev
Purl
pkg:maven/org.xerial.snappy/snappy-java

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.1.10.9

Affected versions

1.*
1.0.1-rc1
1.0.1-rc2
1.0.1-rc3
1.0.1-rc4
1.0.3-rc1
1.0.3-rc2
1.0.3-rc3
1.0.3-rc4
1.0.3
1.0.3.1
1.0.3.2
1.0.3.3
1.0.4
1.0.4.1
1.0.5-M1
1.0.5-M2
1.0.5-M3
1.0.5-M4
1.0.5
1.0.5.1
1.0.5.2
1.0.5.3
1.0.5.4
1.1.0-M1
1.1.0-M2
1.1.0-M3
1.1.0-M4
1.1.0
1.1.0.1
1.1.1-M1
1.1.1-M2
1.1.1-M3
1.1.1-M4
1.1.1
1.1.1.1
1.1.1.2
1.1.1.3
1.1.1.4
1.1.1.5
1.1.1.6
1.1.1.7
1.1.2-M1
1.1.2-RC1
1.1.2-RC2
1.1.2-RC3
1.1.2
1.1.2.1
1.1.2.2
1.1.2.3
1.1.2.4
1.1.2.5
1.1.2.6
1.1.3-M1
1.1.3-M2
1.1.4-M1
1.1.4-M2
1.1.4-M3
1.1.4
1.1.7
1.1.7.1
1.1.7.2
1.1.7.3
1.1.7.4
1.1.7.5
1.1.7.6
1.1.7.7
1.1.7.8
1.1.8
1.1.8.1
1.1.8.2
1.1.8.3
1.1.8.4
1.1.9.0
1.1.9.1
1.1.10.0
1.1.10.1
1.1.10.2
1.1.10.3
1.1.10.4
1.1.10.5
1.1.10.6
1.1.10.7
1.1.10.8

Database specific

last_known_affected_version_range 
"<= 1.1.10.8"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-q233-g92q-qxp6/GHSA-q233-g92q-qxp6.json"