CVE-2026-78497
JQ::Lite versions before 2.51 for Perl execute Perl code embedded in a query's regular expression by compiling it with string eval
JQ::Lite versions before 2.51 for Perl execute Perl code embedded in a query's regular expression by compiling it with string eval.
The pattern given to test(), match(), or the match and =~ conditions of select() is placed in a qr'...' literal and compiled as source text, so a (?{ ... }) code block in it runs without use re 'eval'. Single quotes in the pattern are escaped, but a code block runs in place and needs none.
An attacker who supplies a query, or text that an application inserts into the pattern of one, can execute arbitrary Perl code in the calling process.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
8.4
JQ::Lite versions before 2.51 for Perl execute Perl code embedded in a query's regular expression by compiling it with string eval
JQ::Lite versions before 2.51 for Perl execute Perl code embedded in a query's regular expression by compiling it with string eval.
The pattern given to test(), match(), or the match and =~ conditions of select() is placed in a qr'...' literal and compiled as source text, so a (?{ ... }) code block in it runs without use re 'eval'. Single quotes in the pattern are escaped, but a code block runs in place and needs none.
An attacker who supplies a query, or text that an application inserts into the pattern of one, can execute arbitrary Perl code in the calling process.
- Record
CVE-2026-78497- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-95
- Updated
- 2026-11-02
EUVDEUVD-2026-103450
8.4
JQ::Lite versions before 2.51 for Perl execute Perl code embedded in a query's regular expression by compiling it with string eval.
The pattern given to test(), match(), or the match and =~ conditions of select() is placed in a qr'...' literal and compiled as source text, so a (?{ ... }) code block in it runs without use re 'eval'. Single quotes in the pattern are escaped, but a code block runs in place and needs none.
An attacker who supplies a query, or text that an application inserts into the pattern of one, can execute arbitrary Perl code in the calling process.
- Record
EUVD-2026-103450- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
NVD
8.4
JQ::Lite versions before 2.51 for Perl execute Perl code embedded in a query's regular expression by compiling it with string eval.
The pattern given to test(), match(), or the match and =~ conditions of select() is placed in a qr'...' literal and compiled as source text, so a (?{ ... }) code block in it runs without use re 'eval'. Single quotes in the pattern are escaped, but a code block runs in place and needs none.
An attacker who supplies a query, or text that an application inserts into the pattern of one, can execute arbitrary Perl code in the calling process.
- Record
CVE-2026-78497- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-95
- Updated
- 2026-11-02
OSV
8.4
JQ::Lite versions before 2.51 for Perl execute Perl code embedded in a query's regular expression by compiling it with string eval
JQ::Lite versions before 2.51 for Perl execute Perl code embedded in a query's regular expression by compiling it with string eval.
The pattern given to test(), match(), or the match and =~ conditions of select() is placed in a qr'...' literal and compiled as source text, so a (?{ ... }) code block in it runs without use re 'eval'. Single quotes in the pattern are escaped, but a code block runs in place and needs none.
An attacker who supplies a query, or text that an application inserts into the pattern of one, can execute arbitrary Perl code in the calling process.
- Record
CVE-2026-78497- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-95
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-78497 is a high vulnerability (CVSS 8.4), published October 18, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 9th percentile. No source names a fixed version.
References
github.com/kawamurashingo/JQ-Lite/commit/c461721ae3d5a90d6d94dbb234c1b8dfee5c1769.patch
metacpan.org/release/SHINGO/JQ-Lite-2.51/changes
openwall.com/lists/oss-security/2026/10/18/3
cpan.org/modules
github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78497.json
nvd.nist.gov/vuln/detail/CVE-2026-78497
github.com/kawamurashingo/JQ-Lite