Perl could be made to crash or run programs as your login if it opened a specially crafted file.
It was discovered that Perl incorrectly handled certain arguments to Socket and pack/unpack functions. An attacker could possibly use this issue to read sensitive information from memory. ( CVE-2026-12087 , CVE-2026-57432 ) It was discovered that Perl incorrectly handled regular expressions with a large number of alternation branches. An attacker could possibly use this issue to cause incorrect matching results. ( CVE-2026-13221 ) It was discovered that Perl incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. ( CVE-2026-57433 , CVE-2025-15649 , CVE-2026-48959 , CVE-2026-9538 ) It was discovered that Perl incorrectly...
It was discovered that Perl incorrectly handled certain arguments to Socket and pack/unpack functions. An attacker could possibly use this issue to read sensitive information from memory. ( CVE-2026-12087 , CVE-2026-57432 )
It was discovered that Perl incorrectly handled regular expressions with a large number of alternation branches. An attacker could possibly use this issue to cause incorrect matching results. ( CVE-2026-13221 )
It was discovered that Perl incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. ( CVE-2026-57433 , CVE-2025-15649 , CVE-2026-48959 , CVE-2026-9538 )
It was discovered that Perl incorrectly...
It was discovered that Perl incorrectly handled certain arguments to Socket and pack/unpack functions. An attacker could possibly use this issue to read sensitive information from memory. ( CVE-2026-12087 , CVE-2026-57432 ) It was discovered that Perl incorrectly handled regular expressions with a large number of alternation branches. An attacker could possibly use this issue to cause incorrect matching results. ( CVE-2026-13221 ) It was discovered that Perl incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. ( CVE-2026-57433 , CVE-2025-15649 , CVE-2026-48959 , CVE-2026-9538 ) It was discovered that Perl incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. ( CVE-2026-48962 ) It was discovered that Perl incorrectly handled credential headers during cross-origin redirects in HTTP::Tiny. An attacker could possibly use this issue to expose sensitive information. ( CVE-2026-7017 )
It was discovered that Perl incorrectly handled certain arguments to Socket and pack/unpack functions. An attacker could possibly use this issue to read sensitive information from memory. ( CVE-2026-12087 , CVE-2026-57432 )
It was discovered that Perl incorrectly handled regular expressions with a large number of alternation branches. An attacker could possibly use this issue to cause incorrect matching results. ( CVE-2026-13221 )
It was discovered that Perl incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. ( CVE-2026-57433 , CVE-2025-15649 , CVE-2026-48959 , CVE-2026-9538 )
It was discovered that Perl incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. ( CVE-2026-48962 )
It was discovered that Perl incorrectly handled credential headers during cross-origin redirects in HTTP::Tiny. An attacker could possibly use this issue to expose sensitive information. ( CVE-2026-7017 )
In general, a standard system update will make all the necessary changes.
The problem can be corrected by updating your system to the following package versions:
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
The full story
This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.
