Linux · 
Ubuntu · Package update · September 29, 2026
Ubuntu · Package update · September 29, 2026libpcre2-posix0 10.31-2ubuntu0.1~esm2: libpcre2-posix0 10.31-2ubuntu0.1~esm2 for Ubuntu 18.04.6 LTS (bionic)
libpcre2-posix0 10.31-2ubuntu0.1~esm2, released September 29, 2026, fixes 3 CVEs in libpcre2-posix0. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
3
None rated Critical
Exploited
0
None reported
Highest CVSS
8.2
Base score, 0 to 10
Highest EPSS
0.0035
28th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 3
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libpcre2-posix0 | Ubuntu 18.04.6 LTS (bionic) | 10.31-2ubuntu0.1~esm2 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-89157 | PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern. | 8.2 | 0.0035 | None reported |
| High | CVE-2026-103111 | PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data. | 8.2 | 0.0027 | None reported |
| High | CVE-2026-89158 | PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-bounds write. | 8.2 | 0.0025 | None reported |
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