Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%

Buy Us a Coffee

CVE-2026-49146— App::Ack versions before 3.10.0 for Perl allow memory exhaustion via an unbounded context value in a project .ackrc

Quick assessment

Affected

PETDANCE App::Ack

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PETDANCE App::Ack是PETDANCE个人开发者的一款基于Perl的快速代码搜索工具。 PETDANCE App::Ack 3.10.0版本之前存在资源管理错误漏洞，该漏洞源于在项目.ackrc文件中未限制context值，导致ack根据-B和-C选项分配大缓冲区，可能导致内存耗尽。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.61% · P49 Updated Jul 09, 2026

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

Vendor	Product	Version Range	Status
PETDANCE	App::Ack	`< 3.10.0`	affected

Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-49146

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

App::Ack versions before 3.10.0 for Perl allow memory exhaustion via an unbounded context value in a project .ackrc

Source: CVE Program / CVE List V5

Vulnerability Description

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 repository can abort ack with an out-of-memory condition.

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

不加限制或调节的资源分配

Source: CVE Program / CVE List V5

Vulnerability Title

PETDANCE App::Ack 资源管理错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
PETDANCE	App::Ack	0 ~ 3.10.0	-

II. Public POCs for CVE-2026-49146

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-49146

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-49146 (1)

🔗 https://github.com/beyondgrep/ack3/commit/45ff5fe77dbd96f7332f31943102291f878f30b8.patch Read full article patch

Vendor Pages for CVE-2026-49146 (1)

🔗 Client Challenge Read full article release-notes

https://www.cve.org/CVERecord?id=CVE-2026-49146

Same Patch Batch · PETDANCE · 2026-07-08 · 3 CVEs total

CVE-2026-49147		App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from
CVE-2026-49145		App::Ack versions through 3.10.0 for Perl read arbitrary files via --files-from in a proje

IV. Related Vulnerabilities

Same product: App::Ack

Same vendor: PETDANCE

Same weakness: CWE-770