Signature validation bypass in XmlSecLibs
Rob Richards XmlSecLibs, all versions prior to v3.0.3, as used for example by SimpleSAMLphp, performed incorrect validation of cryptographic signatures in XML messages, allowing an authenticated attacker to impersonate others or elevate privileges by creating a crafted XML message.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | robrichards/xmlseclibs | >= 3.0.0, < 3.0.4, >= 1.0.0, < 2.1.1 | 3.0.4, 2.1.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-3465
- https://github.com/robrichards/xmlseclibs/commit/0a53d3c3aa87564910cae4ed01416441d3ae0db5
- https://www.tenable.com/security/tns-2019-09
- https://www.debian.org/security/2019/dsa-4560
- https://simplesamlphp.org/security/201911-01
- https://seclists.org/bugtraq/2019/Nov/8
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XBSSRV5Q7JFCYO46A3EN624UZ4KXFQ2M
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OCSR3V6LNWJAD37VQB6M2K7P4RQSCVFG
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MAWOVYLZKYDCQBLQEJCFAAD3KQTBPHXE
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HBE2SJSXG7J4XYLJ2H6HC2VPPOG2OMUN
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ESKJTWLE7QZBQ3EKMYXKMBQG3JDEJWM6
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BNFMY5RRLU63P25HEBVDO5KAVI7TX7JV
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BBKVDUZ7G5ZOUO4BFJWLNJ6VOKBQJX5U
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AB34ILMJ67CUROBOR6YPKB46VHXLOAJ4
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7KID7C4AZPYYIZQIPSLANP4R2RQR6YK3
- https://lists.debian.org/debian-lts-announce/2019/11/msg00003.html
- https://github.com/FriendsOfPHP/security-advisories/blob/master/robrichards/xmlseclibs/CVE-2019-3465.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-347- Platform
- Composer
- Package
robrichards/xmlseclibs- Disclosed
- 08.11.2019
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-pqm6-cgwr-x6pf - CC BY 4.0
Vulnerability history: robrichards/xmlseclibs
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 11.2019 03.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 1
Disclosures per year
- 2019: 1
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 1
- 2025: 1
- 2026: 1
-
Signature validation bypass in XmlSecLibs this entry
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