CVE-2026-93451: snappy-java through 1.1.10.8 Buffer Overflow via typed uncompress methods
Vulnerability summary
CVE-2026-93451 is a medium (CVSS 6.9) Out-of-bounds Write vulnerability in xerial snappy-java. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 22.3% of scored vulnerabilities.
Not severe (CVSS 6.9, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 1 · Downstream 0Timeline
- 17-09-2026PublishedVulnerability first disclosed.
- 08-10-2026Last modifiedVulnerability information updated.
Description
snappy-java through 1.1.10.8 contains a buffer overflow vulnerability in typed Snappy.uncompress*Array methods that allocate output arrays by dividing uncompressed length by element size but pass the undivided length to native code. Attackers controlling compressed input can cause misaligned length values to write past array bounds with attacker-controlled bytes, corrupting heap memory.
CVSS metrics
9 scores · 6 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
- NVDNIST6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- OSV · ChainguardEcosystem advisory · calculated6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
- OSV · WolfiEcosystem advisory · calculated6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- OSV · MavenEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.30%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
Decrease -0.21 pp
From 0.50% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard169 products
- apache-hopAll versions (No fix recorded) | < 2.19.0-r9
- apache-hop-fipsAll versions (No fix recorded) | < 2.19.0-r7
- apache-nifi-2.11All versions (No fix recorded) | < 2.11.0-r15
- apache-nifi-2.12All versions (No fix recorded) | < 2.12.0-r10
- apache-polarisAll versions (No fix recorded) | < 1.8.0-r7
Wolfi31 products
- apicurio-registryAll versions (No fix recorded) | < 3.3.3-r10
- cassandra-4.1All versions (No fix recorded)
- cassandra-5.0All versions (No fix recorded) | < 5.0.9-r15
- celeborn-0.6All versions (No fix recorded)
- debezium-3.5-connector-jdbcAll versions (No fix recorded) | < 3.5.2-r9
2 vendors · 200 products · Showing 200 of 214
References
13 links- github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/snappy/Snappy.javaTechnical DescriptionREPORTWEBARTICLE