HighCVE-2026-116326

    PostgreSQL: Operation on a Resource after Expiration or Release (CVE-2026-116326)

    Published Last modified Sources: BSI

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    What is affected, what to do

    Uncaught exceptions in PostgreSQL plperl allow an object creator to cause use of a stale sigjmp_buf, via a tied Perl object, or a Perl object whose overloaded conversion throws while plperl is handling another error. We have not ruled out arbitrary code execution on some platform.

    Update PostgreSQL to version 18.7, PostgreSQL to version 17.12, PostgreSQL to version 16.16.

    Affected
    • PostgreSQL lt 18..18.7
    • PostgreSQL lt 17..17.12
    • PostgreSQL lt 16..16.16
    • PostgreSQL lt 15..15.20
    • PostgreSQL lt *..14.25
    Fixed in
    • PostgreSQL 18.7
    • PostgreSQL 17.12
    • PostgreSQL 16.16
    • PostgreSQL 15.20
    • PostgreSQL 14.25

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    8.8

    XIEM Effective CVSS

    Highest available CVSS rating from NVD and vendor data.

    Source: Vendor (CNA), CVSS v3

    8.8

    CVSS v3

    Severity High on the scale from 0 to 10.

    Source: BSI

    0.6 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 51.1

    Show all metrics
    Severity
    High
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    93.04 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    8.8 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    8.8
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    0.6 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    51.1
    High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CISA assessment (SSVC)
    Exploitation: none known · not automatable · Technical impact: total
    Source: CISA Vulnrichment, as of 13 November 2026
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-672

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    Uncaught exceptions in PostgreSQL plperl allow an object creator to cause use of a stale sigjmp_buf, via a tied Perl object, or a Perl object whose overloaded conversion throws while plperl is handling another error. We have not ruled out arbitrary code execution on some platform. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

    Source: BSI WID Portal

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    —PostgreSQL
    • 15 – < 15.19
    • 15 – < 15.20
    • 16 – < 16.15
    • 16 – < 16.16
    • 17 – < 17.11
    • 17 – < 17.12
    • 18 – < 18.6
    • 18 – < 18.7
    • < 14.24
    • < 14.25
    • 15.19
    • 15.20
    • 16.15
    • 16.16
    • 17.11
    • 17.12
    • 18.6
    • 18.7
    • 14.24
    • 14.25
    postgresqlpostgresql
    • 14.0 – < 14.24
    • 15.0 – < 15.19
    • 16.0 – < 16.15
    • 17.0 – < 17.11
    • 18.0 – < 18.5
    • 14.24
    • 15.19
    • 16.15
    • 17.11
    • 18.5
    Open SourcePostgreSQL
    • < 14.25
    • < 15.20
    • < 16.16
    • < 17.12
    • < 18.7
    • <19 RC 2
    • 14.25
    • 15.20
    • 16.16
    • 17.12
    • 18.7
    • —
    Distribution and container packages (4)

    Downstream packages (e.g. Bitnami, Debian, Ubuntu, Red Hat). Versions refer to the distribution, not the vendor.

    Distribution and container packages
    Affected versionsFixed in
    bitnamipostgresql
    • 15.0.0
    • 16.0.0
    • 17.0.0
    • 18.0.0
    • —
    • —
    • —
    • —
    From bundled advisories, not CVE-specific (7)

    Product list of a bundled advisory that does not state which product this CVE affects.

    Products from bundled advisories
    Affected versionsFixed in
    IBMVIOS
    • 4.1
    • —
    Open SourcePostgreSQL
    • < 14.24
    • < 15.19
    • < 16.15
    • < 17.11
    • < 18.6
    • <19 Beta 3
    • 14.24
    • 15.19
    • 16.15
    • 17.11
    • 18.6
    • —

    Vendors and products

    Affected operating systems

    Affected operating systems
    Linuxdebianpostgresql-15bookworm
    Linuxdebianpostgresql-17trixie

    Weakness classes (CWE)

    • CWE-672Operation on a Resource after Expiration or Release

      Class

      The product uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.

      Entry at MITRE CWE-672

    References & sources

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. Record modifiedCISA ADP

      CISA assessment (SSVC): exploitation: none known, automatable: no

      Show 2 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      SSVC assessmentremoved
      {"id":"CVE-2026-116326","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-11-13T20:26:46.216443Z"}
      —
      SSVC assessmentadded
      —
      {"id":"CVE-2026-116326","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-11-13T00:00:00+00:00"}

      Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

    2. Record modifiedCISA ADP

      CISA assessment (SSVC): exploitation: none known, automatable: no

      Show the original change
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      SSVC assessmentadded
      —
      {"id":"CVE-2026-116326","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-11-13T20:26:46.216443Z"}

      Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

    3. Receivedf86ef6dc…

      CVSS V3.1: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

      Weakness type: CWE-672

      Description added or changed

      Show 5 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Descriptionadded
      —
      Uncaught exceptions in PostgreSQL plperl allow an object creator to cause use of a stale sigjmp_buf, via a tied Perl object, or a Perl object whose overloaded conversion throws while plperl is handling another error. We have not ruled out arbitrary code execution on some platform. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
      CVSSadded
      —
      AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
      Weakness type (CWE)added
      —
      CWE-672
      Affected versions (publisher)added
      —
      New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/116xxx/CVE-2026-116326.json">CVE-2026-116326</a>
      Referenceadded
      —
      https://www.postgresql.org/support/security/CVE-2026-116326/

      Source identifier: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

    Linked CVEs

    Linked CVEs
    HighCVE-2026-6467PostgreSQL extension script schema mishandling executes arbitrary SQL7.2—
    HighCVE-2026-6464PostgreSQL psql COPY FROM STDIN early failure processes data lines as psql commands8.1—
    HighCVE-2026-6460PostgreSQL: Type Confusion8.8—
    HighCVE-2026-18447PostgreSQL output parameter type confusion executes arbitrary code8.8—
    LowCVE-2026-16240PostgreSQL pg_basebackup can use backup manifest content as a format string3.7—
    MediumCVE-2026-16237PostgreSQL: Improper Protection of Alternate Path5.4—
    HighCVE-2026-14661PostgreSQL dblink and subscriptions can append to arbitrary files8.1—
    MediumCVE-2026-120154PostgreSQL: Improper Protection of Alternate Path4.3—
    HighCVE-2026-120153PostgreSQL extension-script substitutions allow SQL injection through object names7.2—
    MediumCVE-2026-120152PostgreSQL pg_show_all_settings() use-after-free discloses memory4.3—
    HighCVE-2026-120151PostgreSQL plpgsql record-field type confusion executes arbitrary code8.8—
    HighCVE-2026-120150PostgreSQL expanded-record domain-check use-after-free executes arbitrary code8.8—
    HighCVE-2026-120149PostgreSQL FDW batch-insert mismatch executes arbitrary code8.8—
    HighCVE-2026-120148PostgreSQL extended-statistics pseudo-type confusion executes arbitrary code8.1—
    HighCVE-2026-120147PostgreSQL dblink reentrant disconnect use-after-free executes arbitrary code8.8—
    MediumCVE-2026-120146PostgreSQL REASSIGN OWNED bypasses role SET and CREATEDB checks4.3—
    HighCVE-2026-120145PostgreSQL logical replication can write to subscriber system catalogs, executing arbitrary code8.8—
    HighCVE-2026-120144PostgreSQL type-cache invalidation gap executes arbitrary code8.8—
    HighCVE-2026-120143PostgreSQL transition-table cursor use-after-free executes arbitrary code8.8—
    HighCVE-2026-120142PostgreSQL dropped-column type confusion executes arbitrary code8.8—
    HighCVE-2026-120141PostgreSQL materialized set-returning function type confusion executes arbitrary code8.8—
    HighCVE-2026-120139PostgreSQL tuple-size integer wraparound executes arbitrary code8.8—
    HighCVE-2026-116336PostgreSQL REINDEX CONCURRENTLY does not block DROP INDEX during index functions8.8—
    HighCVE-2026-116335PostgreSQL commutator or negator result-type confusion executes arbitrary code8.8—
    Show 29 more CVEs
    Linked CVEs
    MediumCVE-2026-116333PostgreSQL parallel B-tree array scan reads beyond array bounds6.5—
    HighCVE-2026-116332PostgreSQL portal setup use-after-free executes arbitrary code8.8—
    HighCVE-2026-116331PostgreSQL min/max aggregate type confusion executes arbitrary code8.8—
    HighCVE-2026-116330PostgreSQL pg_dump tar restore.sql fails to block psql command injection8.8—
    HighCVE-2026-116329PostgreSQL statistics import type confusion executes arbitrary code8.8—
    HighCVE-2026-116328PostgreSQL generation memory context integer wraparound executes arbitrary code8.8—
    MediumCVE-2026-116327PostgreSQL security_barrier analysis can expose hidden values through indirect expressions4.3—
    HighCVE-2026-116326PostgreSQL plperl tied-object exceptions follow stale sigjmp_buf8.8—
    HighCVE-2026-116325PostgreSQL reindexdb index name quoting allows SQL injection8.0—
    HighCVE-2026-116323PostgreSQL pltcl reentrant result conversion use-after-free executes arbitrary code8.8—
    MediumCVE-2026-116322PostgreSQL pre-authentication cancel request can leak a spinlock5.3—
    MediumCVE-2026-116321PostgreSQL unterminated name value discloses server memory4.3—
    HighCVE-2026-116320PostgreSQL plperl array and hash conversion use-after-free executes arbitrary code8.8—
    HighCVE-2026-116319PostgreSQL plperl reentrant return_next() use-after-free executes arbitrary code8.8—
    HighCVE-2026-116318PostgreSQL pg_dump not-null constraint name allows SQL injection8.8—
    HighCVE-2026-116317PostgreSQL ts_rank_cd() heap buffer overflow may execute arbitrary code8.8—
    HighCVE-2026-116316PostgreSQL: Improper Protection of Alternate Path8.8—
    HighCVE-2026-116315PostgreSQL tsvector_delete() heap buffer overflow executes arbitrary code8.8—
    HighCVE-2026-116314PostgreSQL pg_restore executes arbitrary code due to missing non-plain archive validation8.8—
    HighCVE-2026-116313PostgreSQL "vacuumdb --missing-stats-only" lets a database owner execute code as the vacuumdb user7.2—
    MediumCVE-2026-116312PostgreSQL MERGE can place the wrong row in a trigger transition table5.4—
    MediumCVE-2026-116311PostgreSQL DROP OWNED can remove restrictive row security policies from non-owned tables5.4—
    MediumCVE-2026-116310PostgreSQL COPY error context uses freed field storage4.3—
    HighCVE-2026-116309PostgreSQL plperl blessed-reference type confusion may execute arbitrary code8.8—
    MediumCVE-2026-116308PostgreSQL dict_int reads beyond zero-length tokens4.3—
    HighCVE-2026-116307PostgreSQL plperl prepared-query use-after-free executes arbitrary code8.8—
    HighCVE-2026-116306PostgreSQL composite-type change during field assignment executes arbitrary code8.8—
    HighCVE-2026-116304PostgreSQL parallel RECORD typmod use-after-free executes arbitrary code8.8—
    LowCVE-2026-116303PostgreSQL foreign key and JSON conversions bypass EXECUTE privilege on cast functions3.1—
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