CVE Explorer
CVE-2026-49146
App::Ack versions before 3.10.0 for Perl allow memory exhaustion via an unbounded context value in a project .ackrc.
ack searches up the directory hierarchy from the current directory for a project .ackrc and loads its options. The -B and -C context options accepted any positive integer, and ack sized the before-context buffer to that value, so a project .ackrc setting --before-context=100000000 made ack allocate a buffer of 100 million elements.
A project .ackrc committed to an untrusted repo
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"ack","product":"App::Ack","programFiles":["lib/App/Ack/ConfigLoader.pm","ack"],"programRoutines":[{"name":"App::Ack::ConfigLoader::_context_value"}],"repo":"https://github.com/beyondgrep/ack3","vendor":"PETDANCE","versions":[{"lessThan":"3.10.0","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:54e24481ccc600c5d65754fae0762977aabc97c3ecc98e527ffb5482c578f9b1 · sha256:e0f9505fcb32fb14… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:54e24481ccc600c5d65754fae0762977aabc97c3ecc98e527ffb5482c578f9b1 · sha256:e0f9505fcb32fb14… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:54e24481ccc600c5d65754fae0762977aabc97c3ecc98e527ffb5482c578f9b1 · sha256:e0f9505fcb32fb14… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/07/08/8"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:54e24481ccc600c5d65754fae0762977aabc97c3ecc98e527ffb5482c578f9b1 · sha256:e0f9505fcb32fb14… · /containers/adp/1/references/0
{"tags":["patch"],"url":"https://github.com/beyondgrep/ack3/commit/45ff5fe77dbd96f7332f31943102291f878f30b8.patch"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:54e24481ccc600c5d65754fae0762977aabc97c3ecc98e527ffb5482c578f9b1 · sha256:e0f9505fcb32fb14… · /containers/cna/references/0
{"tags":["release-notes"],"url":"https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:54e24481ccc600c5d65754fae0762977aabc97c3ecc98e527ffb5482c578f9b1 · sha256:e0f9505fcb32fb14… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.