Total
56 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-8376 | 1 Perl | 1 Perl | 2026-07-23 | N/A | 9.8 CRITICAL |
| Perl versions through 5.43.10 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds. Perl_study_chunk in regcomp_study.c checked the size of the joined substring buffer in characters rather than bytes. For a quantified fixed substring with a large minimum count, the byte length mincount * l could overflow SSize_t, producing an undersized SvGROW allocation; the subsequent copy writes past the end of the buffer. A caller that compiles an attacker-controlled regular expression on a 32-bit perl build triggers a heap buffer overflow at compile time. | |||||
| CVE-2026-13221 | 1 Perl | 1 Perl | 2026-07-14 | N/A | 9.1 CRITICAL |
| Perl versions through 5.43.9 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl_study_chunk. When such branches are combined into a trie, the delta between the first branch and the shared tail is stored in a 16-bit field. A branch count above 65535 overflows the field, and the trie's match decision table is truncated with no warning or error. A pattern of this shape produces false positive matches (matching strings it should not) and false negative matches (failing to match strings it should). When such a pattern gates an access or filtering decision, the result is wrong. | |||||
| CVE-2026-57432 | 1 Perl | 1 Perl | 2026-07-14 | N/A | 8.4 HIGH |
| Perl versions through 5.43.10 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack. S_measure_struct adds each item's size times its repeat count to a running total with no overflow check, so a large repeat count in a pack or unpack template wraps the signed SSize_t total negative. The @, X, and x position codes then guard their moves with a signed length comparison that passes when the length is negative, advancing the buffer pointer out of bounds. A template derived from untrusted input can read heap memory past the buffer and return it to the caller. | |||||
| CVE-2026-4176 | 1 Perl | 1 Perl | 2026-06-17 | N/A | 9.8 CRITICAL |
| Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib. Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94. | |||||
| CVE-2024-56406 | 1 Perl | 1 Perl | 2026-06-17 | N/A | 8.4 HIGH |
| A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`. $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;' Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses. | |||||
| CVE-2023-47039 | 2 Microsoft, Perl | 2 Windows, Perl | 2026-06-17 | N/A | 7.8 HIGH |
| A vulnerability was found in Perl. This security issue occurs while Perl for Windows relies on the system path environment variable to find the shell (`cmd.exe`). When running an executable that uses the Windows Perl interpreter, Perl attempts to find and execute `cmd.exe` within the operating system. However, due to path search order issues, Perl initially looks for cmd.exe in the current working directory. This flaw allows an attacker with limited privileges to place`cmd.exe` in locations with weak permissions, such as `C:\ProgramData`. By doing so, arbitrary code can be executed when an administrator attempts to use this executable from these compromised locations. | |||||
| CVE-2023-47038 | 3 Fedoraproject, Perl, Redhat | 5 Fedora, Perl, Enterprise Linux and 2 more | 2026-06-17 | N/A | 7.0 HIGH |
| A vulnerability was found in perl 5.30.0 through 5.38.0. This issue occurs when a crafted regular expression is compiled by perl, which can allow an attacker controlled byte buffer overflow in a heap allocated buffer. | |||||
| CVE-2023-31486 | 2 Http\, Perl | 2 \, Perl | 2026-06-17 | N/A | 8.1 HIGH |
| HTTP::Tiny before 0.083, a Perl core module since 5.13.9 and available standalone on CPAN, has an insecure default TLS configuration where users must opt in to verify certificates. | |||||
| CVE-2023-31484 | 2 Cpanpm Project, Perl | 2 Cpanpm, Perl | 2026-06-17 | N/A | 8.1 HIGH |
| CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS. | |||||
| CVE-2022-48522 | 1 Perl | 1 Perl | 2026-06-17 | N/A | 9.8 CRITICAL |
| In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation. | |||||
| CVE-2021-36770 | 3 Fedoraproject, P5-encode Project, Perl | 3 Fedora, P5-encode, Perl | 2026-06-17 | 6.8 MEDIUM | 7.8 HIGH |
| Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value. | |||||
| CVE-2020-12723 | 5 Fedoraproject, Netapp, Opensuse and 2 more | 16 Fedora, Oncommand Workflow Automation, Snap Creator Framework and 13 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls. | |||||
| CVE-2020-10878 | 5 Fedoraproject, Netapp, Opensuse and 2 more | 17 Fedora, Oncommand Workflow Automation, Snap Creator Framework and 14 more | 2026-06-17 | 7.5 HIGH | 8.6 HIGH |
| Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection. | |||||
| CVE-2020-10543 | 4 Fedoraproject, Opensuse, Oracle and 1 more | 15 Fedora, Leap, Communications Billing And Revenue Management and 12 more | 2026-06-17 | 6.4 MEDIUM | 8.2 HIGH |
| Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow. | |||||
| CVE-2018-6913 | 3 Canonical, Debian, Perl | 3 Ubuntu Linux, Debian Linux, Perl | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| Heap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item count. | |||||
| CVE-2018-6798 | 4 Canonical, Debian, Perl and 1 more | 5 Ubuntu Linux, Debian Linux, Perl and 2 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Perl 5.22 through 5.26. Matching a crafted locale dependent regular expression can cause a heap-based buffer over-read and potentially information disclosure. | |||||
| CVE-2018-6797 | 4 Canonical, Debian, Perl and 1 more | 5 Ubuntu Linux, Debian Linux, Perl and 2 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written. | |||||
| CVE-2018-18314 | 5 Canonical, Debian, Netapp and 2 more | 8 Ubuntu Linux, Debian Linux, E-series Santricity Os Controller and 5 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| Perl before 5.26.3 has a buffer overflow via a crafted regular expression that triggers invalid write operations. | |||||
| CVE-2018-18313 | 6 Apple, Canonical, Debian and 3 more | 9 Mac Os X, Ubuntu Linux, Debian Linux and 6 more | 2026-06-17 | 6.4 MEDIUM | 9.1 CRITICAL |
| Perl before 5.26.3 has a buffer over-read via a crafted regular expression that triggers disclosure of sensitive information from process memory. | |||||
| CVE-2018-18312 | 5 Canonical, Debian, Netapp and 2 more | 8 Ubuntu Linux, Debian Linux, E-series Santricity Os Controller and 5 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| Perl before 5.26.3 and 5.28.0 before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations. | |||||