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CVE-2026-120828VulnerabilityPublished

A replica-set database server node does not limit or reclaim internal wait records created while handling a

Source GCVE Database

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Authoritative record:CVE-2026-120828· High 8.7

Not known to be exploited · CVSS 8.7 High · fixed in 9.0.7 : patch MongoDB Server soon.

Data as of 10 Nov 2026, 22:37 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (mongodb)CVSS 4.08.7
CNA (mongodb)CVSS 3.17.5
Patch
Available – fixed in 9.0.7, 8.3.16, 8.0.37 +4
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
MongoDBMongoDB ServerAffected
  • >=9.0.0 <9.0.7
Fixed in
  • 9.0.7
MongoDBMongoDB ServerAffected
  • >=8.3.0 <8.3.16
Fixed in
  • 8.3.16
MongoDBMongoDB ServerAffected
  • >=8.0.0 <8.0.37
Fixed in
  • 8.0.37
MongoDBMongoDB ServerAffected
  • >=7.0.0 <7.0.48
Fixed in
  • 7.0.48
MongoDBMongoDB ServerAffected
  • >=6.0.0 <6.0.30
Fixed in
  • 6.0.30
MongoDBMongoDB ServerAffected
  • >=5.0.0 <5.0.35
Fixed in
  • 5.0.35

AI-suggested

If you cannot patch yet, limit network exposure of the affected database server nodes to trusted parties only to reduce risk.

Description

A vulnerability exists in a replica-set database server node where it fails to limit or reclaim internal wait records created when processing a client-supplied read option specifying a point in time the node will never reach. An unauthenticated attacker with network access can cause these records to accumulate indefinitely, potentially exhausting server memory and causing a denial of service.

References

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