CVE-2026-2005 (GCVE-0-2026-2005)

Vulnerability from cvelistv5 – Published: 2026-02-12 13:00 – Updated: 2026-06-30 12:07
VLAI
Title
PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
Summary
Heap buffer overflow in PostgreSQL pgcrypto allows a ciphertext provider to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
URL Tags
https://www.postgresql.org/support/security/CVE-2…
https://access.redhat.com/security/cve/CVE-2026-2005 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2439326 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:4441 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3887 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19010 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19009 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4064 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4024 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4059 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4063 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4506 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4509 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4504 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4505 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4516 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4075 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4074 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4515 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4518 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4254 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4475 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4548 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4544 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4524 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4546 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4547 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4528 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3896 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4110 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3730 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8756 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4943 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
n/a PostgreSQL Affected: 18 , < 18.2 (rpm)
Affected: 17 , < 17.8 (rpm)
Affected: 16 , < 16.12 (rpm)
Affected: 15 , < 15.16 (rpm)
Affected: 0 , < 14.21 (rpm)
Red Hat Red Hat Enterprise Linux AppStream EUS (v. 10.0)     cpe:/o:redhat:enterprise_linux_eus:10.0
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Red Hat Red Hat Enterprise Linux AppStream (v. 10)     cpe:/o:redhat:enterprise_linux:10.1
    cpe:/o:redhat:enterprise_linux:10.2
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Red Hat Red Hat Enterprise Linux AppStream (v. 8)     cpe:/a:redhat:enterprise_linux:8::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v. 8.2)     cpe:/a:redhat:rhel_aus:8.2::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.4)     cpe:/a:redhat:rhel_aus:8.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)     cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.6)     cpe:/a:redhat:rhel_aus:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.6)     cpe:/a:redhat:rhel_e4s:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.6)     cpe:/a:redhat:rhel_tus:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.8)     cpe:/a:redhat:rhel_e4s:8.8::appstream
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Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.8)     cpe:/a:redhat:rhel_tus:8.8::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.0)     cpe:/a:redhat:rhel_e4s:9.0::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.2)     cpe:/a:redhat:rhel_e4s:9.2::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS (v.9.4)     cpe:/a:redhat:rhel_eus:9.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS (v.9.6)     cpe:/a:redhat:rhel_eus:9.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream (v. 9)     cpe:/a:redhat:enterprise_linux:9::appstream
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Red Hat Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)     cpe:/o:redhat:enterprise_linux_eus:10.0
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Red Hat Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)     cpe:/o:redhat:enterprise_linux:10.1
    cpe:/o:redhat:enterprise_linux:10.2
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Red Hat Red Hat CodeReady Linux Builder EUS (v.9.4)     cpe:/a:redhat:rhel_eus:9.4::crb
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Red Hat Red Hat CodeReady Linux Builder EUS (v.9.6)     cpe:/a:redhat:rhel_eus:9.6::crb
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Red Hat Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)     cpe:/a:redhat:enterprise_linux:9::crb
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Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
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Red Hat Red Hat Update Infrastructure 5     cpe:/a:redhat:rhui:5::el9
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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Credits
The PostgreSQL project thanks Team Xint Code, as part of zeroday.cloud, for reporting this problem.
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}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.