CVE-2026-55892
Fixed in a distro release EPSS <1%CVSS 5.5
Vim is an open source, command line text editor. Prior to 9.2.0662, the dump_prefixes() function in src/spell.c walks a spell-file prefix trie iteratively with a depth counter while dumping the prefixes that apply to a word. The counter is bounded only by the trie structure itself; it is never checked against the size of the fixed MAXWLEN-element stack arrays it indexes (prefix[], arridx[], curi[]). A crafted .spl file, loaded when the user dumps the word list, can drive the descent arbitrarily deep, so the function writes past the end of those arrays. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0662.
Products: vim
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | vim-X11 | 2:9.1.083-9.el10_2.20 |
| AlmaLinux 10 | vim-common | 2:9.1.083-9.el10_2.20 |
| AlmaLinux 10 | vim-data | 2:9.1.083-9.el10_2.20 |
| AlmaLinux 10 | vim-enhanced | 2:9.1.083-9.el10_2.20 |
| AlmaLinux 10 | vim-filesystem | 2:9.1.083-9.el10_2.20 |
| AlmaLinux 10 | vim-minimal | 2:9.1.083-9.el10_2.20 |
| AlmaLinux 10 | xxd | 2:9.1.083-9.el10_2.20 |
| AlmaLinux 8 | vim-X11 | 2:8.0.1763-31.el8_10.7 |
| AlmaLinux 8 | vim-common | 2:8.0.1763-31.el8_10.7 |
| AlmaLinux 8 | vim-enhanced | 2:8.0.1763-31.el8_10.7 |
| AlmaLinux 8 | vim-filesystem | 2:8.0.1763-31.el8_10.7 |
| AlmaLinux 8 | vim-minimal | 2:8.0.1763-31.el8_10.7 |
| AlmaLinux 9 | vim-X11 | 2:8.2.2637-26.el9_8.21 |
| AlmaLinux 9 | vim-common | 2:8.2.2637-26.el9_8.21 |
| AlmaLinux 9 | vim-enhanced | 2:8.2.2637-26.el9_8.21 |
| AlmaLinux 9 | vim-filesystem | 2:8.2.2637-26.el9_8.21 |
| AlmaLinux 9 | vim-minimal | 2:8.2.2637-26.el9_8.21 |
| Alpine 3.23 | vim | 9.2.0854-r0 |
| Amazon Linux 2 | vim-X11 | 2:9.0.2153-1.amzn2.0.11 |
| Amazon Linux 2 | vim-common | 2:9.0.2153-1.amzn2.0.11 |
| Amazon Linux 2 | vim-data | 2:9.0.2153-1.amzn2.0.11 |
| Amazon Linux 2 | vim-enhanced | 2:9.0.2153-1.amzn2.0.11 |
| Amazon Linux 2 | vim-filesystem | 2:9.0.2153-1.amzn2.0.11 |
| Amazon Linux 2 | vim-minimal | 2:9.0.2153-1.amzn2.0.11 |
| Amazon Linux 2 | xxd | 2:9.0.2153-1.amzn2.0.11 |
| Amazon Linux 2023 | vim-common | 2:9.2.725-1.amzn2023.0.1 |
| Amazon Linux 2023 | vim-data | 2:9.2.725-1.amzn2023.0.1 |
| Amazon Linux 2023 | vim-default-editor | 2:9.2.725-1.amzn2023.0.1 |
| Amazon Linux 2023 | vim-enhanced | 2:9.2.725-1.amzn2023.0.1 |
| Amazon Linux 2023 | vim-filesystem | 2:9.2.725-1.amzn2023.0.1 |
| Amazon Linux 2023 | vim-minimal | 2:9.2.725-1.amzn2023.0.1 |
| Amazon Linux 2023 | xxd | 2:9.2.725-1.amzn2023.0.1 |
| Debian 12 | vim | no fix |
| Debian 13 | vim | no fix |
| Debian 14 | vim | 2:9.2.0782-1 |
| Red Hat Enterprise Linux 10.2 | vim | 2:9.1.083-9.el10_2.20 |
| Red Hat Enterprise Linux 10.2 | vim-X11 | 2:9.1.083-9.el10_2.20 |
| Red Hat Enterprise Linux 10.2 | vim-common | 2:9.1.083-9.el10_2.20 |
| Red Hat Enterprise Linux 10.2 | vim-enhanced | 2:9.1.083-9.el10_2.20 |
| Red Hat Enterprise Linux 8 | vim | 2:8.0.1763-31.el8_10.7 |
| Red Hat Enterprise Linux 8 | vim-X11 | 2:8.0.1763-31.el8_10.7 |
| Red Hat Enterprise Linux 8 | vim-common | 2:8.0.1763-31.el8_10.7 |
| Red Hat Enterprise Linux 8 | vim-enhanced | 2:8.0.1763-31.el8_10.7 |
| Red Hat Enterprise Linux 9 | vim | 2:8.2.2637-26.el9_8.21 |
| Red Hat Enterprise Linux 9 | vim-X11 | 2:8.2.2637-26.el9_8.21 |
| Red Hat Enterprise Linux 9 | vim-common | 2:8.2.2637-26.el9_8.21 |
| Red Hat Enterprise Linux 9 | vim-enhanced | 2:8.2.2637-26.el9_8.21 |
| Red Hat hummingbird 1 | vim | 0:9.2.780-1.hum1 |
| Red Hat hummingbird 1 | vim-X11 | 0:9.2.780-1.hum1 |
| Red Hat hummingbird 1 | vim-common | 0:9.2.780-1.hum1 |
| Red Hat hummingbird 1 | vim-data | 0:9.2.780-1.hum1 |
| Red Hat hummingbird 1 | vim-default-editor | 0:9.2.780-1.hum1 |
| Red Hat hummingbird 1 | vim-enhanced | 0:9.2.780-1.hum1 |
| Red Hat hummingbird 1 | vim-filesystem | 0:9.2.780-1.hum1 |
| Red Hat hummingbird 1 | vim-minimal | 0:9.2.780-1.hum1 |
| Red Hat hummingbird 1 | xxd | 0:9.2.780-1.hum1 |
| Rocky Linux 10 | vim | 2:9.1.083-9.el10_2.20 |
| Rocky Linux 8 | vim | 2:8.0.1763-31.el8_10.7 |
| Rocky Linux 9 | vim | 2:8.2.2637-26.el9_8.21 |
| Ubuntu 22.04 LTS | vim | 2:8.2.3995-1ubuntu2.33 |
| Ubuntu 24.04 LTS | vim | 2:9.1.0016-1ubuntu7.17 |
| Ubuntu 25.10 | vim | 2:9.1.0967-1ubuntu6.8 |
| Ubuntu 26.04 LTS | vim | 2:9.1.2141-1ubuntu4.6 |
| Ubuntu Pro 14.04 LTS | vim | 2:7.4.052-1ubuntu3.1+esm30 |
| Ubuntu Pro 16.04 LTS | vim | 2:7.4.1689-3ubuntu1.5+esm36 |
| Ubuntu Pro 18.04 LTS | vim | 2:8.0.1453-1ubuntu1.13+esm21 |
| Ubuntu Pro 20.04 LTS | vim | 2:8.1.2269-1ubuntu5.32+esm9 |