Description
LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The Document Foundation | LibreOffice | 26.2 – < < 26.2.4 | < 26.2.4 |
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 | libreoffice | 4:26.2.4.2-1 | — |
| Debian 13 | libreoffice | 4:25.2.3-2+deb13u5 | — |
| Debian 12 | libreoffice | 4:7.4.7-1+deb12u13 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | libreoffice | 4:26.2.4.2-0ubuntu0.26.04.2 | USN-8534-1 |
| Ubuntu 25.10 | libreoffice | No fix yet | — |
| Ubuntu 24.04 LTS | libreoffice | 4:24.2.7-0ubuntu0.24.04.6 | USN-8534-1 |
| Ubuntu 22.04 LTS | libreoffice | 1:7.3.7-0ubuntu0.22.04.12 | USN-8534-1 |
| Ubuntu 20.04 LTS | libreoffice | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | autocorr-af +178 | 1:7.1.8.1-15.el9_8.2 | RHSA-2026:36832 |
| RHEL 8 | autocorr-af +171 | 1:6.4.7.2-21.el8_10 | RHSA-2026:35839 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.6 EUS | autocorr-af +178 | 1:7.1.8.1-15.el9_6.2 | RHSA-2026:43425 |
| RHEL 9.4 E4S | autocorr-af +176 | 1:7.1.8.1-15.el9_4.2 | RHSA-2026:43424 |
| RHEL 9.2 E4S | autocorr-af +176 | 1:7.1.8.1-14.el9_2.2 | RHSA-2026:43423 |
| RHEL 8.8 TUS | autocorr-af +169 | 1:6.4.7.2-18.el8_8.2 | RHSA-2026:43460 |
| RHEL 8.8 E4S | autocorr-af +169 | 1:6.4.7.2-18.el8_8.2 | RHSA-2026:43460 |
| RHEL 8.6 EUS Long Life | autocorr-af +169 | 1:6.4.7.2-18.el8_6.2 | RHSA-2026:43461 |
| RHEL 8.6 AUS | autocorr-af +169 | 1:6.4.7.2-18.el8_6.2 | RHSA-2026:43461 |
| RHEL 8.4 EUS Long Life | autocorr-af +169 | 1:6.4.7.2-18.el8_4.2 | RHSA-2026:46387 |
| RHEL 8.4 AUS | autocorr-af +169 | 1:6.4.7.2-18.el8_4.2 | RHSA-2026:46387 |
| RHEL 7 ELS | autocorr-af +180 | 1:5.3.6.1-28.el7_9 | RHSA-2026:46386 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | autocorr-af +178 | 1:7.1.8.1-15.el9_8.2.alma.1 | ALSA-2026:36832 |
| AlmaLinux 8 | autocorr-af +171 | 1:6.4.7.2-21.el8_10.alma.1 | ALSA-2026:35839 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | libreoffice | 1:7.1.8.1-15.el9_8.2 | RLSA-2026:36832 |
| Rocky Linux 8 | libreoffice | 1:6.4.7.2-21.el8_10 | RLSA-2026:35839 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | libreoffice | 26.2.5.1-150500.20.37.1 | SUSE-SU-2026:3140-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | libreoffice | 26.8.1.1-bp160.1.1 | openSUSE-SU-2026:22216-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | autocorr-af +178 | 1:7.1.8.1-15.0.1.el9_8.2 | ELSA-2026-36832 |
| Oracle Linux 8 | autocorr-af +171 | 1:6.4.7.2-21.0.1.el8_10 | ELSA-2026-35839 |
| Oracle Linux 7 | autocorr-af +180 | 1:5.3.6.1-26.0.5.el7_9 | ELSA-2026-46386 |
Advisories 20
- openSUSE-SU-2026:22216-1 Security update for libreoffice SUSE / openSUSE Security Updates · Nov 4, 2026
- WID-SEC-2026-1929 LibreOffice: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 3, 2026
- ALSA-2026:36832 Important: libreoffice security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:35839 Important: libreoffice security update AlmaLinux Security Advisories · Oct 29, 2026
- ELSA-2026-46386 Important: libreoffice security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 18, 2026
- RHSA-2026:46387 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- RHSA-2026:46386 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- RHSA-2026:43460 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- RHSA-2026:43461 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- RHSA-2026:43425 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- RHSA-2026:43424 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- RHSA-2026:43423 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- RHSA-2026:36832 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- RHSA-2026:35839 Red Hat Security Advisory: libreoffice security update Red Hat Security Advisories (RHSA) · Jul 28, 2026
- SUSE-SU-2026:3140-1 Security update for libreoffice SUSE / openSUSE Security Updates · Jul 21, 2026
- USN-8534-1 libreoffice vulnerabilities Ubuntu Security Notices (USN) · Jul 14, 2026
- RLSA-2026:36832 Important: libreoffice security update Rocky Linux Security Advisories · Jul 10, 2026
- ELSA-2026-36832 Important: libreoffice security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 10, 2026
- ELSA-2026-35839 Important: libreoffice security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 10, 2026
- RLSA-2026:35839 Important: libreoffice security update Rocky Linux Security Advisories · Jul 7, 2026