CVE-2026-1788

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Source
https://cve.org/CVERecord?id=CVE-2026-1788
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1788.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-1788
Downstream
Published
2026-02-03T03:22:48Z
Modified
2026-10-08T07:13:49Z
Severity
  • 6.6 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/RE:M/U:Amber CVSS Calculator
Summary
Buffer Overflow in Xquic Server
Details

: Out-of-bounds Write vulnerability in Xquic Project Xquic Server xquic on Linux (QUIC protocol implementation, packet processing module modules) allows : Buffer Manipulation.This issue affects Xquic Server: through 1.8.3.

Database specific 
{
    "cna_assigner":  "alibaba",
    "cwe_ids":  [
        "CWE-787"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1788.json"
}
References

Affected packages

Git / github.com/alibaba/xquic

Affected ranges

Type
GIT
Repo
https://github.com/alibaba/xquic
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
863cf59499b03592696fb6c7188a2fc102c4e5e8
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.9.0"
        },
        {
            "fixed":  "1.8.3"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

stable-1.*
stable-1.0.0
stable-1.0.1
v1.*
v1.1.0-beta.1
v1.1.0-beta.2
v1.1.0-stable
v1.2.0-stable
v1.3.0-beta
v1.4.0
v1.5.0
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.7.0
v1.7.1
v1.7.2
v1.8.0
v1.8.1
v1.8.2
v1.8.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1788.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "113333022774093366381828269440543074723",
                "299057689803390314102166936370363950909",
                "174216523501673368871297325698410771816",
                "99338942677483529740230712787429836897"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-1788-7e476404",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/alibaba/xquic/commit/863cf59499b03592696fb6c7188a2fc102c4e5e8",
        "target":  {
            "file":  "src/transport/xqc_conn.h"
        }
    }
]
vanir_signatures_modified 
"2026-10-08T07:13:49Z"