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Vulnerability record · CVE-2019-3465 · published 7 November 2019

CVE-2019-3465: Xmlseclibs project xmlseclibs improper verification of cryptographic signature vulnerability

XXmlseclibs Project · 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.

8.8 CVSS 3.1 High EPSS 3.0% · top 13.2% CWE-347 · Improper verification of cryptographic signature
8.8CVSS 3.1 base score, v2 6.5
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
30References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/robrichards/xmlseclibs/commit/0a53d3c3aa87564910cae4ed01416441d3ae0db5 Patch
https://lists.debian.org/debian-lts-announce/2019/11/msg00003.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KID7C4AZPYYIZQIPSLANP4
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AB34ILMJ67CUROBOR6YPKB4
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBKVDUZ7G5ZOUO4BFJWLNJ6
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BNFMY5RRLU63P25HEBVDO5K
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ESKJTWLE7QZBQ3EKMYXKMBQ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HBE2SJSXG7J4XYLJ2H6HC2V
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MAWOVYLZKYDCQBLQEJCFAAD
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OCSR3V6LNWJAD37VQB6M2K7
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XBSSRV5Q7JFCYO46A3EN624
https://seclists.org/bugtraq/2019/Nov/8 Issue TrackingMailing ListThird Party Advisory
https://simplesamlphp.org/security/201911-01 Third Party Advisory
https://www.debian.org/security/2019/dsa-4560 Third Party Advisory
https://www.tenable.com/security/tns-2019-09
https://github.com/robrichards/xmlseclibs/commit/0a53d3c3aa87564910cae4ed01416441d3ae0db5 Patch
https://lists.debian.org/debian-lts-announce/2019/11/msg00003.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KID7C4AZPYYIZQIPSLANP4
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AB34ILMJ67CUROBOR6YPKB4
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBKVDUZ7G5ZOUO4BFJWLNJ6
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BNFMY5RRLU63P25HEBVDO5K
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ESKJTWLE7QZBQ3EKMYXKMBQ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HBE2SJSXG7J4XYLJ2H6HC2V
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MAWOVYLZKYDCQBLQEJCFAAD
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OCSR3V6LNWJAD37VQB6M2K7
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XBSSRV5Q7JFCYO46A3EN624
https://seclists.org/bugtraq/2019/Nov/8 Issue TrackingMailing ListThird Party Advisory
https://simplesamlphp.org/security/201911-01 Third Party Advisory
https://www.debian.org/security/2019/dsa-4560 Third Party Advisory
https://www.tenable.com/security/tns-2019-09

Track CVE-2019-3465 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2019-3465), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.