[NEW] [low] libarchive: Vulnerability allows code execution and DoS

lowCVE-2026-15028

A local attacker can exploit a vulnerability in libarchive to cause a Denial-of-Service condition or potentially execute arbitrary code.

CSIRTS triage

vendor: libarchive product: libarchive Denial of service Remote code execution

What: A vulnerability in libarchive allows a local attacker to cause a Denial-of-Service condition or potentially execute arbitrary code.
Who is affected: Local users of libarchive are affected by this vulnerability.
Urgency: Remediation is low urgency as the vulnerability requires local access to exploit.
Action: Update libarchive to the latest version to mitigate this risk.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: low
Published: 2026-07-22
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2279

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-150280.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-15028	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for libarchive

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

low[NEW] [low] libarchive: Vulnerability allows unspecified attackcert-bund · 2026-07-23
medium[UPDATE] [medium] libarchive: Vulnerability allows denial of servicecert-bund · 2026-07-22
lowCVE-2026-16517: A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_w…nvd · 2026-07-21
unknownUSN-8581-1: libarchive vulnerabilitiesubuntu · 2026-07-21
lowCVE-2026-16517: Libarchive: libarchive: signed integer overflow in archive_write_zip_headermsrc · 2026-07-14
lowCVE-2026-15028: Libarchive: heap overflow oob read while parsing a tar archive contains a pax extended headermsrc · 2026-07-14