Aggregates CVE and security vulnerability intelligence across all Perl-related products, including CVSS, EPSS, publication dates, and vulnerability intelligence data.
Historical issues mainly involve vendor risk buffer overflow and vendor risk memory corruption and related problems; some flaws may lead to vendor impact memory corruption, affecting vendor surface software deployment scenarios.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2026-57432 | 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 boun | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 8.4 | 0.21% | 2026-07-13 | 2026-07-14 |
| CVE-2026-13221 | 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 ( | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 9.1 | 0.61% | 2026-07-13 | 2026-07-14 |
| CVE-2026-14740 | DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment. The preparse method normalises SQL and removes comments. When the SQL starts with a comment line, the deletion of that line during normalisation led to an out-of-bounds read by one byte. The result is a fault on memory-hardened builds and nondeterministic newline retention on normal builds. | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 9.1 | 0.41% | 2026-07-07 | 2026-07-10 |
| CVE-2026-14739 | DBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements with an extreme number of placeholders. The fix for CVE-2026-10879 did not allocate enough memory to handle approximately 1.2-million placeholders. DBI version 1.650 sets a hard limit of 99,999 placeholders. | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 9.8 | 0.40% | 2026-07-07 | 2026-07-10 |
| CVE-2026-14380 | DBI versions before 1.650 for Perl are vulnerable to code injection via caller-influenced Profile. When a string is assigned to a DBI handle's Profile attribute, DBI splits it into path, package and arguments, and interpolates the package part in a string eval with no validation of the package name. Any caller-influenced value that reaches the Profile attribute is therefore arbitrary Perl code execution, including calls to run system commands. The Profile attribute can be set from three diffe | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 8.8 | 0.49% | 2026-07-07 | 2026-07-10 |
| CVE-2026-9698 | DBI versions before 1.648 for Perl saved errors in a limited-sized buffer. Error messages that were returned when RaiseError, PrintError or HandleError were set were written to a 200-byte buffer without a length limit. Attackers that can influence the error text in an application can trigger a buffer overflow. | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 9.8 | 0.45% | 2026-06-09 | 2026-07-16 |
| CVE-2026-10879 | DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders. The preparse method expands SQL placeholder characters to numbered binders of the form :pN, but only allocates three characters per binder in the buffer. Placeholders 10-99 require four characters, 100-999 require five characters, et cetera. | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 9.8 | 0.43% | 2026-06-05 | 2026-06-17 |
| CVE-2026-8376 | 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 att | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 9.8 | 0.40% | 2026-05-25 | 2026-06-17 |
| CVE-2026-4176 | 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. | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 9.8 | 0.68% | 2026-03-29 | 2026-06-17 |
| CVE-2024-56406 | 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 | 9b29abf9-4ab0-4765-b253-1875cd9b441e | 8.4 | 0.47% | 2025-04-13 | 2026-06-17 |
| CVE-2023-47039 | 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 | [email protected] | 7.8 | 0.41% | 2024-01-02 | 2026-06-17 |
| CVE-2023-47038 | 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. | [email protected] | 7.0 | 0.83% | 2023-12-18 | 2026-06-17 |
| CVE-2022-48522 | 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. | [email protected] | 9.8 | 2.05% | 2023-08-22 | 2026-06-17 |
| CVE-2023-31486 | 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. | [email protected] | 8.1 | 1.73% | 2023-04-28 | 2026-06-17 |
| CVE-2023-31484 | CPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS. | [email protected] | 8.1 | 1.55% | 2023-04-28 | 2026-06-17 |
| CVE-2020-16156 | CPAN 2.28 allows Signature Verification Bypass. | [email protected] | 7.8 | 0.79% | 2021-12-13 | 2026-06-16 |
| CVE-2019-20919 | An issue was discovered in the DBI module before 1.643 for Perl. The hv_fetch() documentation requires checking for NULL and the code does that. But, shortly thereafter, it calls SvOK(profile), causing a NULL pointer dereference. | [email protected] | 4.7 | 0.51% | 2020-09-17 | 2026-06-16 |
| CVE-2014-10402 | An issue was discovered in the DBI module through 1.643 for Perl. DBD::File drivers can open files from folders other than those specifically passed via the f_dir attribute in the data source name (DSN). NOTE: this issue exists because of an incomplete fix for CVE-2014-10401. | [email protected] | 6.1 | 0.49% | 2020-09-16 | 2026-06-16 |
| CVE-2020-14393 | A buffer overflow was found in perl-DBI < 1.643 in DBI.xs. A local attacker who is able to supply a string longer than 300 characters could cause an out-of-bounds write, affecting the availability of the service or integrity of data. | [email protected] | 7.1 | 0.60% | 2020-09-16 | 2026-06-16 |
| CVE-2020-14392 | An untrusted pointer dereference flaw was found in Perl-DBI < 1.643. A local attacker who is able to manipulate calls to dbd_db_login6_sv() could cause memory corruption, affecting the service's availability. | [email protected] | 5.5 | 0.55% | 2020-09-16 | 2026-06-16 |