Description
NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| freedesktop | Poppler | < 25.04.0 | 25.04.0 |
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 | poppler | 25.03.0-4 | — |
| Debian 13 | poppler | 25.03.0-4 | — |
| Debian 12 | poppler | 22.12.0-2+deb12u3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | poppler | 24.02.0-1ubuntu9.4 | USN-7471-1 |
| Ubuntu 22.04 LTS | poppler | 22.02.0-2ubuntu0.8 | USN-7471-1 |
| Ubuntu 20.04 LTS | poppler | 0.86.1-0ubuntu1.7 | USN-7471-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | poppler | 0.62.0-2ubuntu2.14+esm6 | USN-7471-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | poppler +2 | 24.03.0-150600.3.13.1 | SUSE-SU-2025:1434-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | poppler +2 | 24.03.0-150600.3.13.1 | SUSE-SU-2025:1434-1 |
Advisories 3
- WID-SEC-2025-0934 poppler: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Aug 2, 2026
- USN-7471-1 poppler vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2025:1434-1 Security update for poppler SUSE / openSUSE Security Updates · Mar 23, 2026