Description
matrix-js-sdk is a Matrix messaging protocol Client-Server SDK for JavaScript. matrix-js-sdk before 34.11.0 is vulnerable to client-side path traversal via crafted MXC URIs. A malicious room member can trigger clients based on the matrix-js-sdk to issue arbitrary authenticated GET requests to the client's homeserver. Fixed in matrix-js-sdk 34.11.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| matrix-org | matrix-js-sdk | < 34.11.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | thunderbird | 1:128.5.2esr-1 | — |
| Debian 13 | thunderbird | 1:128.5.2esr-1 | — |
| Debian 12 | thunderbird | 1:128.6.0esr-1~deb12u1 | DSA-5841-1 |
| Debian 11 | thunderbird | 1:128.6.0esr-1~deb11u1 | DLA-4012-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mozjs102 +2 | No fix yet | — |
| Ubuntu 22.04 LTS | mozjs78 +3 | No fix yet | — |
| Ubuntu 22.04 LTS | thunderbird | 1:140.7.1+build1-0ubuntu0.22.04.1 | — |
| Ubuntu 20.04 LTS | mozjs52 +2 | No fix yet | — |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | MozillaThunderbird | 128.5.2-150200.8.194.1 | SUSE-SU-2024:4326-1 |
| SLES 15 SP5 | MozillaThunderbird | 128.5.2-150200.8.194.1 | SUSE-SU-2024:4326-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaThunderbird | 128.5.2-1.1 | openSUSE-SU-2024:14584-1 |
| openSUSE Leap 15.6 | MozillaThunderbird | 128.5.2-150200.8.194.1 | SUSE-SU-2024:4326-1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 128.5.2-150200.8.194.1 | SUSE-SU-2024:4326-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | thunderbird | 128.7.0-1.amzn2.0.2 | ALAS2-2025-2789 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | matrix-js-sdk | < 34.11.1 | 34.11.1 | GHSA-xvg8-m4x3-w6xr |
Advisories 7
- DSA-5841-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4012-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2024:4326-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14584-1 MozillaThunderbird-128.5.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-3685 Mozilla Thunderbird: Schwachstelle ermöglicht Path-Traversal Angriff BSI CERT-Bund (WID) · Feb 2, 2026
- ALAS2-2025-2789 Important: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 7, 2025
- NCSC-2025-0016 Kwetsbaarheden verholpen in Mozilla Firefox en Thunderbird NCSC-NL (Netherlands) · Jan 15, 2025