VulnerabilityPublished 2 Nov 2026

CVE-2026-58971: In _mupdf_get_hdr of wprint_mupdf.c, there is a possible out-of-bounds read due to an integer overflow

Source GCVE Database

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Authoritative record:CVE-2026-58971· Medium

Not known to be exploited.

Data as of 2 Nov 2026, 22:43 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation evidence

Disclosed: evidence found.
CVE published 2 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-qfj3-8897-jc93

What to do

Affected software

Product	Affected	Fixed in
GoogleAndroid	Affected 14 – 17 5 affected builds	Fixed in–

Description

A vulnerability exists in the _mupdf_get_hdr function of wprint_mupdf.c due to an integer overflow that may cause an out-of-bounds read. This flaw can lead to local information disclosure without requiring additional execution privileges or user interaction.

Impact

Local attackers can exploit this integer overflow to read memory beyond intended bounds, potentially disclosing sensitive information. No additional execution privileges or user interaction are required for exploitation.

Summary

The _mupdf_get_hdr function in wprint_mupdf.c contains an integer overflow vulnerability that can result in an out-of-bounds read. This vulnerability allows an attacker with local access to potentially disclose sensitive information from memory. Exploitation does not require elevated privileges or user interaction.

References

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