Vulnerability · Published Aug 27, 2026 · Assigned by vmware
CVE-2026-59274Unbounded decompression in UnZipTransformer enables zip-bomb DoS
Medium 6.5
In plain English
A medium-severity security flaw in Spring Integration from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 63.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The UnZipTransformer does not limit decompressed entry size or entry count when processing archives. Consequently, an attacker can send a zip archive that can exhaust JVM heap memory, causing a denial-of-service outage. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Integration | 7.1.07.0.0 – through 7.0.56.5.0 – through 6.5.106.4.0 – through 6.4.12 |
Weakness: CWE-409 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H