CVE-2026-44981

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Source
https://cve.org/CVERecord?id=CVE-2026-44981
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44981.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44981
Aliases
Downstream
Published
2026-07-16T19:47:30.747Z
Modified
2026-07-19T03:31:06.606576155Z
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
CrowdSec LAPI: Denial of Service via Unbounded Gzip Decompression
Details

CrowdSec offers crowdsourced protection against malicious IPs. From 1.7.0 until 1.7.8, the LAPI router used gin-contrib/gzip with DefaultDecompressHandle globally in pkg/apiserver/controllers/controller.go, causing /v1/watchers and /v1/watchers/login to decompress unauthenticated gzip-compressed JSON request bodies without enforcing a maximum decompressed size and allowing excessive heap allocation that can make LAPI unreachable. This issue is fixed in version 1.7.8.

Database specific 
{
    "cwe_ids": [
        "CWE-409"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44981.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/crowdsecurity/crowdsec

Affected ranges

Type
GIT
Repo
https://github.com/crowdsecurity/crowdsec
Events
Introduced
c3036e21abca984952947360e47f1f36c2ef1b22
Fixed
54a0dfe6c16b7687b0da6634e0b19ef0f5d9bb30
Fixed
56d0d6915f7f25941dc5b4f484028646f6601a37
Database specific 
{
    "extracted_events": [
        {
            "introduced": "1.7.0"
        },
        {
            "fixed": "1.7.8"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.7.0
v1.7.1
v1.7.1-rc1
v1.7.1-rc2
v1.7.1-rc3
v1.7.1-rc4
v1.7.4
v1.7.4-rc1
v1.7.4-rc2
v1.7.5
v1.7.5-rc1
v1.7.6
v1.7.7
v1.7.7-rc1
v1.7.8-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44981.json"