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Fencer Vulns
medium 4.0

CVE-2026-2625 json

Rust-rpm-sequoia: rust-rpm-sequoia: denial of service via crafted rpm file during signature verification

published 2026-04-03 7 mo ago modified 2026-11-05 3 d ago also EUVD-2026-18815

cvss
4.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits
0
none known

Summary

A flaw was found in rust-rpm-sequoia. An attacker can exploit this vulnerability by providing a specially crafted Red Hat Package Manager (RPM) file. During the RPM signature verification process, this crafted file can trigger an error in the OpenPGP signature parsing code, leading to an unconditional termination of the rpm process. This issue results in an application level denial of service, making the system unable to process RPM files for signature verification.

Patch / fix

  • Red Hat Red Hat Hardened Images 1.10.1.1-1.2.hum1, 1.10.3-0.3.hum1
  • rust-rpm-sequoia Debian 14 1.10.2-1

debian advisories DEBIAN-CVE-2026-2625

  • rpm-sequoia hummingbird 1 1.10.1.1-1.2.hum1
  • rust-rpm-sequoia hummingbird 1 1.10.1.1-1.2.hum1

red hat advisories RHSA-2026:12682

  • sequoia-sq Alpine 3.23 1.3.1-r2
  • sequoia-sq Alpine 3.24 1.3.1-r4
  • sequoia-sqv Alpine 3.23 1.3.0-r1
  • sequoia-sqv Alpine 3.24 1.3.0-r2
  • py3-pysequoia Alpine 3.24 0.1.34-r0
  • sequoia-chameleon-gnupg Alpine 3.23 0.13.1-r1
  • sequoia-chameleon-gnupg Alpine 3.24 0.13.1-r2

alpine advisories ALPINE-CVE-2026-2625

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-2625 updated cvss 4.0

rust-rpm-sequoia: rust-rpm-sequoia: Denial of Service via crafted RPM file during signature verification

  • Red Hat Enterprise Linux 9 rpm-sequoia, rust-rpm-sequoia Red Hat Enterprise Linux 10 rust-rpm-sequoia
    affected: workaround, no fix available “Avoid processing untrusted or attacker-controlled RPM files with rpm -Kv or rpm --checksig. Use isolated environments or additional validation layers when handling untrusted RPM artifacts.”
  • Red Hat Hardened Images rpm-sequoia 1.10.3-0.3.hum1, rpm-sequoia 1.10.1.1-1.2.hum1, rust-rpm-sequoia 1.10.3-0.3.hum1, rust-rpm-sequoia 1.10.1.1-1.2.hum1
    fixed: vendor fix “Avoid processing untrusted or attacker-controlled RPM files with rpm -Kv or rpm --checksig. Use isolated environments or additional validation layers when handling untrusted RPM artifacts.” RHSA-2026:12682

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
7 mo ago

Exploit prediction

0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Hardened Images
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-347 Improper Verification of Cryptographic Signature

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.