CVE-2026-19913
Quick assessment
Affected
Kaltura Kaltura HTML5 Video Player, html5lib library
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Kaltura Server是Kaltura公司开源的一款视频管理软件。 Kaltura Server v2.103及之前版本存在输入验证错误漏洞，该漏洞源于对mwEmbedLoader.php中ServiceUrl参数验证不当，可能导致未经身份验证的远程攻击者读取服务器可访问的任意内部文件。
Possible ATT&CK Techniques 3 AI
T1048 · Exfiltration Over Alternative Protocol T1005 · Data from Local System T1115 · Clipboard DataAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Kaltura | Kaltura HTML5 Video Player, html5lib library | ≤ v2.103 |
affected |
2.45 |
affected |
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I. Basic Information for CVE-2026-19913
Vulnerability Information
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Vulnerability Title
CVE-2026-19913
Source: CVE Program / CVE List V5
Vulnerability Description
The Kaltura HTML5 player (mwEmbed / html5lib) contains a local file disclosure vulnerability due to improper validation of the ServiceUrl parameter in mwEmbedLoader.php. This parameter is used as the base URL for a backend request and accepts non‑HTTP schemes such as file://. When an exception or error occurs, the response is subsequently deserialized and its raw contents are reflected to the client in an error message; this enables an unauthenticated, remote attacker to read any arbitrary internal file reachable by the server. Affected versions include html5lib v2.45, v2.103 and earlier, and other v2.x releases exposing the vulnerable endpoint.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Kaltura Server 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kaltura Server是Kaltura公司开源的一款视频管理软件。 Kaltura Server v2.103及之前版本存在输入验证错误漏洞，该漏洞源于对mwEmbedLoader.php中ServiceUrl参数验证不当，可能导致未经身份验证的远程攻击者读取服务器可访问的任意内部文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Kaltura | Kaltura HTML5 Video Player, html5lib library | 0 ~ v2.103 | - |
|
II. Public POCs for CVE-2026-19913
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-19913 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-19913
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