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simplesamlphp

Authentication and federation application supporting several protocols

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general

source: simplesamlphp (main)
version: 2.5.3.1-1
maintainer: Debian PHP PEAR Maintainers (archive) (DMD)
uploaders: Nikolas Nyby [DMD]
arch: all
std-ver: 4.7.4
VCS: Git (Browse, QA)

versions [more versions can be listed by madison] [old versions available from snapshot.debian.org]

[pool directory]

o-o-stable: 1.19.0-1
o-o-sec: 1.19.0-1+deb11u2
oldstable: 1.19.7-1+deb12u2
old-sec: 1.19.7-1+deb12u1
testing: 2.5.3.1-1
unstable: 2.5.3.1-1

versioned links

1.19.0-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.19.0-1+deb11u2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.19.7-1+deb12u1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.19.7-1+deb12u2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
2.5.3.1-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]

binaries

simplesamlphp

action needed

2 security issues in sid high

There are 2 open security issues in sid.

2 important issues:

CVE-2026-49283: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive() flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator() attaches a TLS-based validator to the outer SOAP ArtifactResponse, while the embedded Response receives a validator that delegates to the outer message and is later checked against metadata selected from the embedded response issuer rather than necessarily the artifact issuer. SOAPClient::validateSSL() returns normally when the TLS public key does not match the key being validated, and SAML2\Message::validate() treats a validator call that does not throw as successful. In a multi-IdP federation, a malicious or lower-trust IdP can therefore provide an ArtifactResponse containing an unsigned Response that claims a higher-trust victim IdP as issuer and authenticate as arbitrary users with attacker-chosen assertion attributes, NameID, and session data. This issue is fixed in versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1.
CVE-2026-49289: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. In 4.19.2 and 4.20.2, the library permits attacker-controlled XPath transforms while processing XML signatures in specially crafted SAML messages. XPath evaluation can consume uncontrolled processing resources, allowing a remote unauthenticated attacker to deny service to any entity relying on SimpleSAMLphp or directly on the SAML2 library. The mitigation limits the number of transforms, permits only transform algorithms identified by the SAML 2.0 Core specification, and specifically rejects XPath transforms. This issue is fixed in versions 4.19.3 and 4.20.3.

Created: 2026-08-22 Last update: 2026-08-25 08:30

2 security issues in forky high

There are 2 open security issues in forky.

2 important issues:

CVE-2026-49283: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive() flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator() attaches a TLS-based validator to the outer SOAP ArtifactResponse, while the embedded Response receives a validator that delegates to the outer message and is later checked against metadata selected from the embedded response issuer rather than necessarily the artifact issuer. SOAPClient::validateSSL() returns normally when the TLS public key does not match the key being validated, and SAML2\Message::validate() treats a validator call that does not throw as successful. In a multi-IdP federation, a malicious or lower-trust IdP can therefore provide an ArtifactResponse containing an unsigned Response that claims a higher-trust victim IdP as issuer and authenticate as arbitrary users with attacker-chosen assertion attributes, NameID, and session data. This issue is fixed in versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1.
CVE-2026-49289: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. In 4.19.2 and 4.20.2, the library permits attacker-controlled XPath transforms while processing XML signatures in specially crafted SAML messages. XPath evaluation can consume uncontrolled processing resources, allowing a remote unauthenticated attacker to deny service to any entity relying on SimpleSAMLphp or directly on the SAML2 library. The mitigation limits the number of transforms, permits only transform algorithms identified by the SAML 2.0 Core specification, and specifically rejects XPath transforms. This issue is fixed in versions 4.19.3 and 4.20.3.

Created: 2026-08-22 Last update: 2026-08-25 08:30

3 security issues in bullseye high

There are 3 open security issues in bullseye.

2 important issues:

CVE-2026-49283: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive() flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator() attaches a TLS-based validator to the outer SOAP ArtifactResponse, while the embedded Response receives a validator that delegates to the outer message and is later checked against metadata selected from the embedded response issuer rather than necessarily the artifact issuer. SOAPClient::validateSSL() returns normally when the TLS public key does not match the key being validated, and SAML2\Message::validate() treats a validator call that does not throw as successful. In a multi-IdP federation, a malicious or lower-trust IdP can therefore provide an ArtifactResponse containing an unsigned Response that claims a higher-trust victim IdP as issuer and authenticate as arbitrary users with attacker-chosen assertion attributes, NameID, and session data. This issue is fixed in versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1.
CVE-2026-49289: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. In 4.19.2 and 4.20.2, the library permits attacker-controlled XPath transforms while processing XML signatures in specially crafted SAML messages. XPath evaluation can consume uncontrolled processing resources, allowing a remote unauthenticated attacker to deny service to any entity relying on SimpleSAMLphp or directly on the SAML2 library. The mitigation limits the number of transforms, permits only transform algorithms identified by the SAML 2.0 Core specification, and specifically rejects XPath transforms. This issue is fixed in versions 4.19.3 and 4.20.3.

1 issue postponed or untriaged:

CVE-2026-49284: (postponed; to be fixed through a stable update) SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. Prior to 2.4.7 and 2.5.2, SimpleSAMLphp's SAML SP ACS path does not enforce the IdP selected for an SP-initiated login when unsigned Response/InResponseTo is combined with a signed assertion lacking SubjectConfirmationData/InResponseTo, allowing a response issued by one trusted IdP to be bound to SP state created for another IdP and bypass flows that route users to a specific IdP, including deployments that set enable_unsolicited to false. This issue is fixed in versions 2.4.7 and 2.5.2.

Created: 2026-08-22 Last update: 2026-08-25 08:30

3 security issues in bookworm high

There are 3 open security issues in bookworm.

2 important issues:

CVE-2026-49283: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive() flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator() attaches a TLS-based validator to the outer SOAP ArtifactResponse, while the embedded Response receives a validator that delegates to the outer message and is later checked against metadata selected from the embedded response issuer rather than necessarily the artifact issuer. SOAPClient::validateSSL() returns normally when the TLS public key does not match the key being validated, and SAML2\Message::validate() treats a validator call that does not throw as successful. In a multi-IdP federation, a malicious or lower-trust IdP can therefore provide an ArtifactResponse containing an unsigned Response that claims a higher-trust victim IdP as issuer and authenticate as arbitrary users with attacker-chosen assertion attributes, NameID, and session data. This issue is fixed in versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1.
CVE-2026-49289: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. In 4.19.2 and 4.20.2, the library permits attacker-controlled XPath transforms while processing XML signatures in specially crafted SAML messages. XPath evaluation can consume uncontrolled processing resources, allowing a remote unauthenticated attacker to deny service to any entity relying on SimpleSAMLphp or directly on the SAML2 library. The mitigation limits the number of transforms, permits only transform algorithms identified by the SAML 2.0 Core specification, and specifically rejects XPath transforms. This issue is fixed in versions 4.19.3 and 4.20.3.

1 issue postponed or untriaged:

CVE-2026-49284: (postponed; to be fixed through a stable update) SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. Prior to 2.4.7 and 2.5.2, SimpleSAMLphp's SAML SP ACS path does not enforce the IdP selected for an SP-initiated login when unsigned Response/InResponseTo is combined with a signed assertion lacking SubjectConfirmationData/InResponseTo, allowing a response issued by one trusted IdP to be bound to SP state created for another IdP and bypass flows that route users to a specific IdP, including deployments that set enable_unsolicited to false. This issue is fixed in versions 2.4.7 and 2.5.2.

Created: 2026-08-22 Last update: 2026-08-25 08:30

2 security issues in trixie high

There are 2 open security issues in trixie.

2 important issues:

CVE-2024-52596: SimpleSAMLphp xml-common is a common classes for handling XML-structures. When loading an (untrusted) XML document, for example the SAMLResponse, it's possible to induce an XXE. This vulnerability is fixed in 1.19.0.
CVE-2024-52806: SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. When loading an (untrusted) XML document, for example the SAMLResponse, it's possible to induce an XXE. This vulnerability is fixed in 4.6.14 and 5.0.0-alpha.18.

Created: 2024-12-02 Last update: 2024-12-03 21:32

lintian reports 80 warnings normal

Lintian reports 80 warnings about this package. You should make the package lintian clean getting rid of them.

Created: 2026-08-20 Last update: 2026-08-20 12:17

Issues found with some translations low

Automatic checks made by the Debian l10n team found some issues with the translations contained in this package. You should check the l10n status report for more information.

Issues can be things such as missing translations, problematic translated strings, outdated PO files, unknown languages, etc.

Created: 2020-02-26 Last update: 2026-07-22 10:31

news

[2026-08-25] simplesamlphp 2.5.3.1-1 MIGRATED to testing (Debian testing watch)
[2026-08-20] Accepted simplesamlphp 2.5.3.1-1 (source) into unstable (Nikolas Nyby) (signed by: Simon Quigley)
[2026-08-19] simplesamlphp 2.4.8-1 MIGRATED to testing (Debian testing watch)
[2026-07-21] Accepted simplesamlphp 2.4.8-1 (source) into unstable (Nikolas Nyby) (signed by: Simon Quigley)
[2026-07-20] Accepted simplesamlphp 2.3.11-2 (source) into unstable (Nikolas Nyby) (signed by: bage@debian.org)
[2026-07-14] Accepted simplesamlphp 2.3.11-1 (source) into unstable (Nikolas Nyby) (signed by: Simon Quigley)
[2026-07-09] simplesamlphp 2.2.6-1 MIGRATED to testing (Debian testing watch)
[2026-07-03] Accepted simplesamlphp 2.2.6-1 (source) into unstable (Nikolas Nyby) (signed by: Alexandre Detiste)
[2026-06-20] simplesamlphp 2.1.8-0.1 MIGRATED to testing (Debian testing watch)
[2026-06-15] Accepted simplesamlphp 2.1.8-0.1 (source) into unstable (Nikolas Nyby) (signed by: Alexandre Detiste)
[2025-05-31] Accepted simplesamlphp 1.19.7-1+deb12u2 (source) into proposed-updates (Debian FTP Masters) (signed by: Tobias Frost)
[2025-05-10] Accepted simplesamlphp 1.19.7-2 (source) into unstable (Tobias Frost)
[2025-05-09] Accepted simplesamlphp 1.19.0-1+deb11u2 (source) into oldstable-security (Tobias Frost)
[2025-01-01] simplesamlphp REMOVED from testing (Debian testing watch)
[2024-12-03] Accepted simplesamlphp 1.19.7-1+deb12u1 (source all) into proposed-updates (Debian FTP Masters) (signed by: Thijs Kinkhorst)
[2024-12-02] Accepted simplesamlphp 1.19.7-1+deb12u1 (source all) into stable-security (Debian FTP Masters) (signed by: Thijs Kinkhorst)
[2024-12-01] Accepted simplesamlphp 1.19.0-1+deb11u1 (source all) into oldstable-security (Thijs Kinkhorst)
[2023-01-10] simplesamlphp 1.19.7-1 MIGRATED to testing (Debian testing watch)
[2023-01-04] Accepted simplesamlphp 1.19.7-1 (source) into unstable (Thijs Kinkhorst)
[2022-12-11] simplesamlphp 1.19.6-1 MIGRATED to testing (Debian testing watch)
[2022-12-06] Accepted simplesamlphp 1.19.6-1 (source) into unstable (Thijs Kinkhorst)
[2021-09-17] simplesamlphp 1.19.1-1.1 MIGRATED to testing (Debian testing watch)
[2021-09-11] Accepted simplesamlphp 1.19.1-1.1 (source) into unstable (Paul Gevers)
[2021-05-10] Accepted simplesamlphp 1.19.1-1 (source all) into unstable (Thijs Kinkhorst)
[2021-02-03] simplesamlphp 1.19.0-1 MIGRATED to testing (Debian testing watch)
[2021-01-29] Accepted simplesamlphp 1.19.0-1 (source) into unstable (Thijs Kinkhorst)
[2020-09-09] simplesamlphp 1.18.8-1 MIGRATED to testing (Debian testing watch)
[2020-09-04] Accepted simplesamlphp 1.18.8-1 (source) into unstable (Thijs Kinkhorst)
[2020-05-20] simplesamlphp 1.18.7-1 MIGRATED to testing (Debian testing watch)
[2020-05-15] Accepted simplesamlphp 1.18.7-1 (source) into unstable (Thijs Kinkhorst)

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bugs [bug history graph]

all: 0

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version: 2.5.3.1-1

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