CVE-2026-2858A vulnerability was identified in wren-lang wren up to 0.4.0.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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A vulnerability was identified in wren-lang wren up to 0.4.0. This affects the function peekChar of the file src/vm/wren_compiler.c of the component Source File Parser. Such manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
- CVSS
- 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- CWE-119, CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
wren wren wren:wren | through 0.4.0 | NVD |
References
- https://github.com/oneafter/0122/blob/main/i1217/reproissue-tracking, product
- https://github.com/wren-lang/wren/product
- https://github.com/wren-lang/wren/issues/1217issue-tracking
- https://vuldb.com/?ctiid.347097permissions-required, vdb-entry
- https://vuldb.com/?id.347097third-party-advisory, vdb-entry
- https://vuldb.com/?submit.754489third-party-advisory, vdb-entry
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.