Description
Sympa before 6.2.59b.2 allows remote attackers to obtain full SOAP API access by sending any arbitrary string (except one from an expired cookie) as the cookie value to authenticateAndRun.
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 | sympa | 6.2.58~dfsg-2 | — |
| Debian 13 | sympa | 6.2.58~dfsg-2 | — |
| Debian 12 | sympa | 6.2.58~dfsg-2 | — |
| Debian 10 | sympa | 6.2.40~dfsg-1+deb10u1 | DSA-4818-1 |
| Debian 9 | sympa | 6.2.16~dfsg-3+deb9u5 | DLA-2499-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | sympa | No fix yet | — |
| Ubuntu Pro 18.04 LTS | sympa | No fix yet | — |
| Ubuntu Pro 16.04 LTS | sympa | No fix yet | — |
Advisories 2
- DSA-4818-1 sympa - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2499-1 sympa - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/sympa-community/sympa/issues/1041
- https://github.com/sympa-community/sympa/pull/1044
- https://github.com/sympa-community/sympa/blob/6.2.59b.2/NEWS.md
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=976020
- [debian-lts-announce] 20201217 [SECURITY] [DLA 2499-1] sympa security update mailing-list
- DSA-4818 vendor-advisory
- FEDORA-2021-a5570c5281 vendor-advisory
- FEDORA-2021-11cb6626e2 vendor-advisory