CVE-2026-48044
- Source
- https://cve.org/CVERecord?id=CVE-2026-48044
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48044.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-48044
- Aliases
-
- BIT-envoy-2026-48044
- GHSA-m3p9-47wh-88wg
- Downstream
- Related
- Published
- 2026-06-26T17:31:37.602Z
- Modified
- 2026-07-15T01:48:52.294276578Z
- 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
- Envoy Zstd Decompressor: Ratio Check at Wrong Loop Depth lead to memory explosion
- Details
-
Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation (ZstdDecompressorImpl). When zstd decompression is enabled, processing a specially crafted, highly compressed zstd payload can lead to massive memory allocation. An attacker can exploit this to cause severe memory exhaustion, potentially resulting in an Out-Of-Memory (OOM) kill and Denial of Service (DoS) for the Envoy proxy. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.
- Database specific
{ "cwe_ids": [ "CWE-409" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48044.json", "cna_assigner": "GitHub_M" }- References
Affected packages
Git / github.com/envoyproxy/envoy
Affected ranges
- Type
- GIT
- Repo
- https://github.com/envoyproxy/envoy
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
{ "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "1.23.0" }, { "fixed": "1.35.13" }, { "introduced": "1.36.0" }, { "fixed": "1.36.9" }, { "introduced": "1.37.0" }, { "fixed": "1.37.5" }, { "introduced": "1.38.0" }, { "fixed": "1.38.3" } ], "source": "CPE_RANGE" }
Affected versions
v1.*
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.35.1
v1.35.10
v1.35.11
v1.35.12
v1.35.2
v1.35.3
v1.35.4
v1.35.5
v1.35.6
v1.35.7
v1.35.8
v1.35.9
v1.36.0
v1.36.1
v1.36.2
v1.36.3
v1.36.4
v1.36.5
v1.36.6
v1.36.7
v1.36.8
v1.37.0
v1.37.1
v1.37.2
v1.37.3
v1.37.4
v1.38.0
v1.38.1
v1.38.2