CVE catalog

CVE-2026-95520

Severity: High · CVSS 7.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Published: Sep 29, 2026, 10:54:13 AM UTC
Updated: Sep 29, 2026, 12:17:12 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.12% · Oct 25, 2026

A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFFFFFFFFF causes an integer overflow in iterReadArchiveNext() that shrinks a buffer allocation to one byte, after which the payload's independently-controlled cpio filesize field is used to write attacker-controlled data past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	rpm	sid	`6.1.0-1`	vulnerable
Debian	rpm	forky	`6.1.0-1`	vulnerable
Debian	rpm	trixie	`4.20.1+dfsg-3`	vulnerable
Debian	rpm	bookworm	`4.18.0+dfsg-1+deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	rpm	source	sid	`(unfixed)`	not yet assigned	Not reported	[1149951]
Debian	rpm	source	forky	`(unfixed)`	not yet assigned	Not reported	[1149951]
Debian	rpm	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1149951]
Debian	rpm	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1149951]

[Debian bug #1149951]

Notes

[trixie] rpm: Minor issue [bookworm] rpm: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[librpm9]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[librpmbuild9]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[librpm-dev]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[librpmio9]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[librpmsign9]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[python3-rpm]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[rpm]Affected
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[rpm2cpio]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[rpm-common]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
[rpm-i18n]Affected
Source package: [rpm]
Details (2)
- 4.18.0+dfsg-1+deb12u1 · all · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12
- 4.18.0+dfsg-1+deb12u1 · all · bookworm
  Affected
  nvd · rpm · debian · bookworm; nvd · rpm · debian · 12

[Debian 13 (Trixie)]

[librpm10]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[librpmbuild10]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[librpm-dev]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[librpmio10]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[librpmsign10]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[python3-rpm]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[rpm]Affected
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[rpm2cpio]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[rpm-common]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · amd64 · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · arm64 · trixie
  Affected
  nvd · rpm · debian · 13
[rpm-i18n]Affected
Source package: [rpm]
Details (2)
- 4.20.1+dfsg-3 · all · trixie
  Affected
  nvd · rpm · debian · 13
- 4.20.1+dfsg-3 · all · trixie
  Affected
  nvd · rpm · debian · 13

Observed: Oct 23, 2026, 7:47:22 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]