CVE-2026-27212

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Source
https://cve.org/CVERecord?id=CVE-2026-27212
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27212.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-27212
Aliases
Published
2026-02-21T05:43:07.072Z
Modified
2026-03-03T02:56:21.076513Z
Severity
  • 9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
Summary
Swiper has a Prototype Pollution Vulnerability
Details

Swiper is a free and mobile touch slider with hardware accelerated transitions and native behavior. Versions 6.5.1 through 12.1.1 have a Prototype pollution vulnerability. The vulnerability resides in line 94 of shared/utils.mjs, where the indexOf() function is used to check whether user provided input contain forbidden strings. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using Array.prototype. The exploit works across Windows and Linux and on Node and Bun runtimes. Any application that processes attacker-controlled input using this package may be affected by the following: Authentication Bypass, Denial of Service and RCE. This issue is fixed in version 12.1.2.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27212.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-1321"
    ]
}
References

Affected packages

Git / github.com/nolimits4web/swiper

Affected ranges

Type
GIT
Repo
https://github.com/nolimits4web/swiper
Events
Introduced
29aee0424307fb6a847c7bdd36149c392d8b9127
Fixed
2fd88b718b6854e8d6be7f183e68b73b68dae816

Affected versions

v0.*
v0.9.0-beta.12
v0.9.0-beta.14
v0.9.0-beta.15
v0.9.0-beta.16
v10.*
v10.0.0
v10.0.0-beta.1
v10.0.0-beta.2
v10.0.0-beta.3
v10.0.0-beta.4
v10.0.0-beta.5
v10.0.0-beta.6
v10.0.1
v10.0.2
v10.0.3
v10.0.4
v10.1.0
v10.2.0
v10.3.0
v10.3.1
v11.*
v11.0.0
v11.0.0-beta.1
v11.0.0-beta.2
v11.0.0-beta.3
v11.0.1
v11.0.2
v11.0.3
v11.0.4
v11.0.5
v11.0.6
v11.0.7
v11.1.0
v11.1.1
v11.1.10
v11.1.11
v11.1.12
v11.1.14
v11.1.15
v11.1.2
v11.1.3
v11.1.4
v11.1.5
v11.1.6
v11.1.7
v11.1.8
v11.1.9
v11.2.0
v11.2.1
v11.2.10
v11.2.2
v11.2.3
v11.2.4
v11.2.5
v11.2.6
v11.2.7
v11.2.8
v11.2.9
v12.*
v12.0.0
v12.0.1
v12.0.2
v12.0.3
v12.1.0
v12.1.1
v6.*
v6.5.1
v6.5.2
v6.5.3
v6.5.4
v6.5.5
v6.5.5-beta.1
v6.5.6
v6.5.7
v6.5.8
v6.5.9
v6.6.0
v6.6.1
v6.6.2
v6.7.0
v6.7.1
v6.7.5
v6.8.0
v6.8.0-beta.1
v6.8.1
v6.8.2
v7.*
v7.0.0
v7.0.0-alpha.1
v7.0.0-alpha.10
v7.0.0-alpha.11
v7.0.0-alpha.12
v7.0.0-alpha.14
v7.0.0-alpha.15
v7.0.0-alpha.16
v7.0.0-alpha.17
v7.0.0-alpha.18
v7.0.0-alpha.19
v7.0.0-alpha.2
v7.0.0-alpha.20
v7.0.0-alpha.21
v7.0.0-alpha.22
v7.0.0-alpha.23
v7.0.0-alpha.24
v7.0.0-alpha.25
v7.0.0-alpha.26
v7.0.0-alpha.27
v7.0.0-alpha.28
v7.0.0-alpha.29
v7.0.0-alpha.3
v7.0.0-alpha.30
v7.0.0-alpha.31
v7.0.0-alpha.32
v7.0.0-alpha.33
v7.0.0-alpha.34
v7.0.0-alpha.35
v7.0.0-alpha.36
v7.0.0-alpha.37
v7.0.0-alpha.38
v7.0.0-alpha.39
v7.0.0-alpha.4
v7.0.0-alpha.40
v7.0.0-alpha.5
v7.0.0-alpha.6
v7.0.0-alpha.7
v7.0.0-alpha.8
v7.0.0-alpha.9
v7.0.1
v7.0.2
v7.0.3
v7.0.4
v7.0.5
v7.0.6
v7.0.7
v7.0.8
v7.0.9
v7.1.0
v7.2.0
v7.3.0
v7.3.1
v7.3.2
v7.3.3
v7.3.4
v7.4.0
v7.4.1
v8.*
v8.0.0
v8.0.1
v8.0.2
v8.0.3
v8.0.4
v8.0.5
v8.0.6
v8.0.7
v8.1.0
v8.1.1
v8.1.2
v8.1.3
v8.1.4
v8.1.5
v8.1.6
v8.2.0
v8.2.1
v8.2.2
v8.2.3
v8.2.4
v8.2.5
v8.2.6
v8.3.0
v8.3.1
v8.3.2
v8.4.0
v8.4.1
v8.4.2
v8.4.3
v8.4.4
v8.4.5
v8.4.6
v8.4.7
v9.*
v9.0.0
v9.0.0-beta.1
v9.0.0-beta.10
v9.0.0-beta.11
v9.0.0-beta.16
v9.0.0-beta.17
v9.0.0-beta.18
v9.0.0-beta.19
v9.0.0-beta.2
v9.0.0-beta.20
v9.0.0-beta.21
v9.0.0-beta.22
v9.0.0-beta.23
v9.0.0-beta.24
v9.0.0-beta.25
v9.0.0-beta.26
v9.0.0-beta.27
v9.0.0-beta.28
v9.0.0-beta.29
v9.0.0-beta.3
v9.0.0-beta.30
v9.0.0-beta.31
v9.0.0-beta.32
v9.0.0-beta.33
v9.0.0-beta.34
v9.0.0-beta.35
v9.0.0-beta.36
v9.0.0-beta.37
v9.0.0-beta.38
v9.0.0-beta.4
v9.0.0-beta.40
v9.0.0-beta.41
v9.0.0-beta.42
v9.0.0-beta.5
v9.0.0-beta.6
v9.0.0-beta.7
v9.0.0-beta.8
v9.0.0-beta.9
v9.0.1
v9.0.2
v9.0.3
v9.0.4
v9.0.5
v9.1.0
v9.1.1
v9.2.0
v9.2.1
v9.2.2
v9.2.3
v9.2.4
v9.3.0
v9.3.0-beta.1
v9.3.1
v9.3.2
v9.4.0
v9.4.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27212.json"