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chore(deps): update dependency brace-expansion@>=1.0.0 <=1.1.11 to v5 [security]#61

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chore(deps): update dependency brace-expansion@>=1.0.0 <=1.1.11 to v5 [security]#61
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@renovate renovate Bot commented Mar 27, 2026

This PR contains the following updates:

Package Change Age Confidence
brace-expansion@>=1.0.0 <=1.1.11 [^1.1.12^5.0.6](https://renovatebot.com/diffs/npm/brace-expansion@>=1.0.0 <=1.1.11/1.1.12/5.0.6) age confidence

brace-expansion: Zero-step sequence causes process hang and memory exhaustion

CVE-2026-33750 / GHSA-f886-m6hf-6m8v

More information

Details

Impact

A brace pattern with a zero step value (e.g., {1..2..0}) causes the sequence generation loop to run indefinitely, making the process hang for seconds and allocate heaps of memory.

The loop in question:

https://github.com/juliangruber/brace-expansion/blob/daa71bcb4a30a2df9bcb7f7b8daaf2ab30e5794a/src/index.ts#L184

test() is one of

https://github.com/juliangruber/brace-expansion/blob/daa71bcb4a30a2df9bcb7f7b8daaf2ab30e5794a/src/index.ts#L107-L113

The increment is computed as Math.abs(0) = 0, so the loop variable never advances. On a test machine, the process hangs for about 3.5 seconds and allocates roughly 1.9 GB of memory before throwing a RangeError. Setting max to any value has no effect because the limit is only checked at the output combination step, not during sequence generation.

This affects any application that passes untrusted strings to expand(), or by error sets a step value of 0. That includes tools built on minimatch/glob that resolve patterns from CLI arguments or config files. The input needed is just 10 bytes.

Patches

Upgrade to versions

  • 5.0.5+

A step increment of 0 is now sanitized to 1, which matches bash behavior.

Workarounds

Sanitize strings passed to expand() to ensure a step value of 0 is not used.

Severity

  • CVSS Score: 6.5 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


brace-expansion: Large numeric range defeats documented max DoS protection

CVE-2026-45149 / GHSA-jxxr-4gwj-5jf2

More information

Details

The max option was being applied too late:

When expanding a single large numeric range like {1..10000000}, the sequence generation loop generates all 10 million intermediate elements before the max limit is applied With max=10, the output is correctly limited to 10 items, but the process still allocates ~505 MB and spends ~800ms building the full intermediate array.

Workaround

Ensure the string to be expanded doesn't contain more values than the desired max item count.

Severity

  • CVSS Score: 6.5 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


Release Notes

juliangruber/brace-expansion (brace-expansion@>=1.0.0 <=1.1.11)

v5.0.6

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v5.0.5

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v5.0.4

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v5.0.3

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v5.0.2

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v4.0.1

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v4.0.0

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As a precaution to not risk breaking anything with 278132b, this is a new semver major release

v3.0.2

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v3.0.1

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v3.0.0

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v2.1.1

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v2.1.0

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v2.0.3

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v2.0.2

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v2.0.1

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v2.0.0

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v1.1.15

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v1.1.14

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v1.1.13

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@renovate renovate Bot force-pushed the renovate/npm-brace-expansion-=1.0.0-=1.1.11-vulnerability branch 3 times, most recently from 2fede2b to 5dd7ab8 Compare April 1, 2026 22:10
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@renovate renovate Bot changed the title chore(deps): update dependency brace-expansion@>=1.0.0 <=1.1.11 to v5 [security] chore(deps): update dependency brace-expansion@>=1.0.0 <=1.1.11 to v5 [security] - autoclosed Apr 27, 2026
@renovate renovate Bot closed this Apr 27, 2026
@renovate renovate Bot deleted the renovate/npm-brace-expansion-=1.0.0-=1.1.11-vulnerability branch April 27, 2026 17:21
@renovate renovate Bot changed the title chore(deps): update dependency brace-expansion@>=1.0.0 <=1.1.11 to v5 [security] - autoclosed chore(deps): update dependency brace-expansion@>=1.0.0 <=1.1.11 to v5 [security] Apr 27, 2026
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