VulnerableCode Package Details - pkg:maven/org.keycloak/keycloak-core@None

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Vulnerability	Summary	Fixed by
VCID-rmk2-8vdv-ubdt Aliases: CVE-2023-48795 GHSA-45x7-px36-x8w8	The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.	There are no reported fixed by versions.
VCID-ubns-dvvn-3kej Aliases: CVE-2022-4137 GHSA-9hhc-pj4w-w5rv GMS-2023-616	Keycloak Cross-site Scripting on OpenID connect login service A reflected cross-site scripting (XSS) vulnerability was found in the `oob` OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page.	There are no reported fixed by versions.
VCID-xkq6-s5da-yub7 Aliases: CVE-2022-1438 GHSA-w354-2f3c-qvg9 GMS-2023-529	Keycloak vulnerable to Cross-site Scripting A flaw was found in Keycloak. Under specific circumstances, HTML entities are not sanitized during user impersonation, resulting in a Cross-site scripting (XSS) vulnerability. ## Details This issue is the result of code found in the exception here: [https://github.com/keycloak/keycloak/blob/48835576daa158443f69917ac309e1a7c951bc87/services/src/main/java/org/keycloak/authentication/AuthenticationProcessor.java#L1045](https://github.com/keycloak/keycloak/blob/48835576daa158443f69917ac309e1a7c951bc87/services/src/main/java/org/keycloak/authentication/AuthenticationProcessor.java#L1045) ## Steps to reproduce When using the legacy admin console: 1. Sign in as Admin user in first tab. 2. In that tab create new user in keycloak admin section > intercept user creation request and modify it by including malicious js script there (in username field). 3. Sign in as newly created user in second tab (same browser window but second tab). 4. Navigate back to first tab where you are signed in as admin, navigate to admin console which lists all application users. 5. Choose any user (except newly created malicious one) – modify anything for that user in his settings. E.g. navigate to credentials tab and set new credentials for him. Also set new password as temporary. 6. After update for that user is made, use impersonate option on that modified user. 7. You should see window with form which requires providing new credentials – fill it and submit request. 8. Just after submiting request user will get notified that “You are already authenticated as different user ‘[user + payload]’ in this session. Please sign out first.” And malicious payload will be executed instantly.	There are no reported fixed by versions.

Vulnerability

Summary

Fixed by

VCID-rmk2-8vdv-ubdt
Aliases:
CVE-2023-48795
GHSA-45x7-px36-x8w8

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.

There are no reported fixed by versions.

VCID-ubns-dvvn-3kej
Aliases:
CVE-2022-4137
GHSA-9hhc-pj4w-w5rv
GMS-2023-616

Keycloak Cross-site Scripting on OpenID connect login service A reflected cross-site scripting (XSS) vulnerability was found in the `oob` OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page.

There are no reported fixed by versions.

VCID-xkq6-s5da-yub7
Aliases:
CVE-2022-1438
GHSA-w354-2f3c-qvg9
GMS-2023-529

Keycloak vulnerable to Cross-site Scripting A flaw was found in Keycloak. Under specific circumstances, HTML entities are not sanitized during user impersonation, resulting in a Cross-site scripting (XSS) vulnerability. ## Details This issue is the result of code found in the exception here: [https://github.com/keycloak/keycloak/blob/48835576daa158443f69917ac309e1a7c951bc87/services/src/main/java/org/keycloak/authentication/AuthenticationProcessor.java#L1045](https://github.com/keycloak/keycloak/blob/48835576daa158443f69917ac309e1a7c951bc87/services/src/main/java/org/keycloak/authentication/AuthenticationProcessor.java#L1045) ## Steps to reproduce When using the legacy admin console: 1. Sign in as Admin user in first tab. 2. In that tab create new user in keycloak admin section > intercept user creation request and modify it by including malicious js script there (in username field). 3. Sign in as newly created user in second tab (same browser window but second tab). 4. Navigate back to first tab where you are signed in as admin, navigate to admin console which lists all application users. 5. Choose any user (except newly created malicious one) – modify anything for that user in his settings. E.g. navigate to credentials tab and set new credentials for him. Also set new password as temporary. 6. After update for that user is made, use impersonate option on that modified user. 7. You should see window with form which requires providing new credentials – fill it and submit request. 8. Just after submiting request user will get notified that “You are already authenticated as different user ‘[user + payload]’ in this session. Please sign out first.” And malicious payload will be executed instantly.

There are no reported fixed by versions.

Vulnerability	Summary	Aliases
This package is not known to fix vulnerabilities.

Vulnerability

Summary

Aliases

This package is not known to fix vulnerabilities.

Date	Actor	Action	Vulnerability	Source	VulnerableCode Version
2025-07-31T09:30:53.177795+00:00	GitLab Importer	Affected by	VCID-rmk2-8vdv-ubdt	https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.keycloak/keycloak-core/CVE-2023-48795.yml	37.0.0
2025-07-31T09:30:06.191204+00:00	GitLab Importer	Affected by	VCID-ubns-dvvn-3kej	https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.keycloak/keycloak-core/CVE-2022-4137.yml	37.0.0
2025-07-31T09:30:04.549745+00:00	GitLab Importer	Affected by	VCID-xkq6-s5da-yub7	https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.keycloak/keycloak-core/CVE-2022-1438.yml	37.0.0