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AEGLIX MIND

Intelligence for Africa and the Gulf

AEGLIX investigation

CVE-2026-39979 research

A source-linked research view connecting vulnerability evidence, reviewed campaign mentions, retained reporting and security tool listings.

Evidence summary

jq is a command-line JSON processor. In commits before 2f09060afab23fe9390cce7cb860b10416e1bf5f, the jv_parse_sized() API in libjq accepts a counted buffer with an explicit length parameter, but its error-handling path formats the input buffer using %s in jv_string_fmt(), which reads until a NUL terminator is found rather than respecting the caller-supplied length. This means that when malformed JSON is passed in a non-NUL-terminated buffer, the error construction logic performs an out-of-bounds read past the end of the buffer. The vulnerability is reachable by any libjq consumer calling jv_parse_sized() with untrusted input, and depending on memory layout, can result in memory disclosure...

Assess exposure and vendor guidance

  • No higher-priority signal is available in the current stored evidence.

CVSS: 6.9 · EPSS: 0.56% (2026-10-27)

Source retrieved 2026-10-28T10:18:56.384947+00:00. Read the full record and affected versions before making a patch decision.

Campaign content mentioning this CVE

Only published campaigns that passed the existing source-review gate are included. A textual mention does not establish exploitation or campaign membership.

No exact mention was found in the checked published campaign content.

Stored reporting mentioning this CVE

These are publisher excerpts, not independent verification of their claims.

No exact mention was found in the checked stored news excerpts.

Investigate advisory publishers

These domains come from vulnerability references. They are advisory publishers, not identified threat indicators. Links prefill Investigate; you choose whether to run a lookup.

Find referenced tools in Arsenal

Search published listings whose documented CVE-reference field contains CVE-2026-39979. An empty result is valid. A reference does not establish safety, exploit reliability or suitability for your environment.

Search exact CVE references in Arsenal

Review the listing’s source and trust evidence. Use testing tools only on systems you are authorized to assess.

Coverage and interpretation

Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence.

Checked up to 100 candidate excerpts and 100 candidate campaigns; at most 10 results per section are shown. No external search or scan ran while loading this page.

Open structured research evidence (JSON)