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CVE Record

CVE-2026-2625: Rust-rpm-sequoia: rust-rpm-sequoia: denial of service via crafted rpm file during signature verification

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.

MediumCVSS 4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-2625 can crash the RPM signature verification process when it handles a specially crafted RPM file. The main business impact is disruption to package verification or update workflows, not data theft or privilege escalation. Red Hat rates it medium severity with CVSS 4.0.

Executive priority

Treat as a routine but timely Linux platform maintenance issue. Prioritize environments that ingest third-party RPMs or rely on automated package verification pipelines. This is not currently evidenced as exploited in the provided sources.

Technical view

The flaw is in rust-rpm-sequoia OpenPGP signature parsing during RPM signature verification. A crafted RPM can trigger an error path that unconditionally terminates the rpm process, causing application-level denial of service. Red Hat maps this to CWE-347 and lists affected rust-rpm-sequoia packages in RHEL 9, RHEL 10, and Red Hat Hardened Images.

Likely exposure

Exposure is most likely on Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 10, and Red Hat Hardened Images using the affected rust-rpm-sequoia packages to verify RPM signatures.

Exploitation context

Sources describe exploitation by providing a crafted RPM file for signature verification. CISA KEV is false in the provided data, and no cited source states active exploitation. Impact is limited to availability of the rpm verification process.

Researcher notes

Evidence supports denial of service during signature verification only. The source bundle does not provide exploit code, fixed package versions, or broader vendor impact beyond Red Hat-listed products. Avoid assuming compromise risk beyond process termination and availability loss.

Mitigation direction

  • Review Red Hat RHSA-2026:12682 for applicable updates and package guidance.
  • Prioritize systems that process untrusted or externally supplied RPM files.
  • Limit acceptance of RPM files to trusted sources where operationally possible.
  • Monitor Red Hat CVE and Bugzilla pages for updated remediation details.

Validation and detection

  • Inventory RHEL 9, RHEL 10, and Hardened Images in scope.
  • Check installed rust-rpm-sequoia or rust-rpm-sequoia-main package status.
  • Compare installed packages against Red Hat advisory applicability.
  • Review package verification failures or rpm process crashes in relevant logs.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-347: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-2625 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L2.51.4redhat

Vulnerability scoring details

Base CVSS 3.1 score

4Medium
CVSS 3.1 vector shape for CVE-2026-2625Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Made public.

  2. Source timelineredhat

    Reported to Red Hat.

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Red HatRed Hat Hardened Imagesrust-rpm-sequoia-main, 1.10.1.1-1.2.hum1affected
Red HatRed Hat Enterprise Linux 10rust-rpm-sequoiaaffected
Red HatRed Hat Enterprise Linux 9rust-rpm-sequoiaaffected
Weakness

CWE details

CWE-347

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.