CVE-2026-118261
- Source
- https://cve.org/CVERecord?id=CVE-2026-118261
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-118261.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-118261
- Aliases
- Downstream
- Published
- 2026-10-28T18:58:43Z
- Modified
- 2026-10-29T10:45:57Z
- Severity
-
- 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Echo: Decompress permits unbounded gzip expansion in v4
- Details
-
Echo is a Go web framework. From 4.0.0 until 4.16.1, Echo v4's opt-in Decompress middleware exposes a gzip-decoded request stream without limiting its expanded size. A small compressed request can expand into a very large body when a handler reads or binds it, consuming excessive memory or CPU and allowing repeated or concurrent requests to cause denial of service. The middleware is not enabled by default, and limiting only the compressed request size does not bound the decoded size. This issue is fixed in 4.16.1.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-400", "CWE-409" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118261.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118261.json
- https://github.com/labstack/echo/commit/3fb0ba7e17645bb65611e2a08875d0a2f65c421f
- https://github.com/labstack/echo/releases/tag/v4.16.1
- https://github.com/labstack/echo/security/advisories/GHSA-h7wr-284f-5qvc
- https://nvd.nist.gov/vuln/detail/CVE-2026-118261
Affected packages
Git / github.com/labstack/echo
Affected ranges
- Type
- GIT
- Repo
- https://github.com/labstack/echo
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "4.0.0" }, { "fixed": "4.16.1" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "3fb0ba7e17645bb65611e2a08875d0a2f65c421f" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v4.16.1", "range": [ { "fixed": "600b9855dfbcb22c7e643e43ce397d5248e882b2" } ], "source": "REFERENCES_TAG" } ] }
Affected versions
v4.*
v4.0.0
v4.1.0
v4.1.1
v4.1.10
v4.1.11
v4.1.12
v4.1.13
v4.1.14
v4.1.15
v4.1.16
v4.1.17
v4.1.2
v4.1.3
v4.1.4
v4.1.5
v4.1.6
v4.1.7
v4.1.8
v4.1.9
v4.10.0
v4.10.1
v4.10.2
v4.11.0
v4.11.1
v4.11.2
v4.11.3
v4.11.4
v4.12.0
v4.13.0
v4.13.1
v4.13.2
v4.13.3
v4.13.4
v4.14.0
v4.15.0
v4.15.1
v4.15.2
v4.15.3
v4.15.4
v4.16.0
v4.2.0
v4.2.1
v4.2.2
v4.3.0
v4.4.0
v4.5.0
v4.6.0
v4.6.1
v4.6.2
v4.7.0
v4.7.1
v4.7.2
v4.8.0
v4.9.0
v4.9.1