CVE-2026-23956

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-23956
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23956.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23956
Aliases
Published
2026-01-22T01:23:58Z
Modified
2026-08-12T03:51:14Z
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
seroval affected by Denial of Service via RegExp serialization
Details

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 0.2.0 through 1.4.0, overriding RegExp serialization with extremely large patterns can exhaust JavaScript runtime memory during deserialization. Additionally, overriding RegExp serialization with patterns that trigger catastrophic backtracking can lead to ReDoS (Regular Expression Denial of Service). This issue has been fixed in version 1.4.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-1333"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23956.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "0.2.0"
                },
                {
                    "fixed": "1.4.1"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "0.2.0"
                },
                {
                    "fixed": "1.4.0"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / github.com/lxsmnsyc/seroval

Affected ranges

Type
GIT
Repo
https://github.com/lxsmnsyc/seroval
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ce9408ebc87312fcad345a73c172212f2a798060
Database specific
Show details 
{
    "source": "REFERENCES"
}

Affected versions

v0.*
v0.1.0
v0.10.0
v0.10.1
v0.10.2
v0.10.3
v0.10.4
v0.11.0
v0.11.1
v0.11.2
v0.11.3
v0.11.4
v0.11.5
v0.11.6
v0.12.0
v0.12.1
v0.12.2
v0.12.3
v0.12.4
v0.13.0
v0.13.1
v0.13.2
v0.14.0
v0.14.1
v0.15.0
v0.15.1
v0.2.0
v0.2.1
v0.3.0
v0.4.0
v0.4.1
v0.5.0
v0.5.1
v0.6.0
v0.7.0
v0.8.0
v0.9.0
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.1.0
v1.1.1
v1.2.0
v1.2.1
v1.3.0
v1.3.1
v1.3.2
v1.3.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23956.json"